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Cordova Framework7 template sub pages javascript doesn't works

I have a index.html page in Framework7 template which acts like master page, and sub pages for example contact.html ;
<div class="pages">
<div data-page="contact" class="page no-toolbar no-navbar">
<div class="page-content">
<div class="navbarpages navbarpagesbg">
<div class="navbar_left">
<div class="logo_text">BLIX</div>
</div>
<div class="navbar_right navbar_right_menu">
<img src="images/icons/white/menu.png" alt="" title="" />
</div>
<div class="navbar_right">
<img src="images/icons/white/user.png" alt="" title="" />
</div>
<div class="navbar_right">
<img src="images/icons/white/cart.png" alt="" title="" /><span>3</span>
</div>
</div>
<div id="pages_maincontent">
<h2 class="page_title">CONTACT</h2>
<div class="page_single layout_fullwidth_padding">
<h2 id="Note"></h2>
<div class="contactform">
<form class="" id="ContactForm" method="post" action="">
<label>Name:</label>
<input type="text" name="ContactName" id="ContactName" value="" class="form_input required" />
<label>Email:</label>
<input type="text" name="ContactEmail" id="ContactEmail" value="" class="form_input required email" />
<label>Message:</label>
<textarea name="ContactComment" id="ContactComment" class="form_textarea textarea required" rows="" cols=""></textarea>
<input type="submit" name="submit" class="form_submit" id="submit" value="Send" />
<input class="" type="hidden" name="to" value="youremail#yourwebsite.com" />
<input class="" type="hidden" name="subject" value="Contacf form message" />
<label id="loader" style="display:none;"><img src="images/loader.gif" alt="Loading..." id="LoadingGraphic" /></label>
</form>
</div>
<h3>Our Location</h3>
<iframe src="https://www.google.com/maps/embed?pb=!1m18!1m12!1m3!1d193578.74109041138!2d-73.97968099999997!3d40.70331274999999!2m3!1f0!2f0!3f0!3m2!1i1024!2i768!4f13.1!3m3!1m2!1s0x89c24fa5d33f083b%3A0xc80b8f06e177fe62!2sNew+York+NYC%2C+New+York%2C+Statele+Unite+ale+Americii!5e0!3m2!1sro!2s!4v1425027721891" width="100%" height="200" frameborder="0" style="border:0"></iframe>
<blockquote>
Adress: New York 23066 / Pacific Street / Brooklyn <br />
Email: email#yourwebsite.com <br />
Mobile: +900 456 567 77
</blockquote>
Call Us Now!
<div class="clear"></div>
</div>
</div>
</div>
</div>
</div>
When I add bottom page this javascript ;
<script type="text/javascript">
alert('Hello World!');
</script>
It doesn't trigger and it doesn't give any error. When I add it to bottom of index.html page or my-app.js file it works. But I need some specific javascripts in sub pages. How can I achive this? Thanks.

Page Events: https://framework7.io/docs/page.html#page-events
On your index page, include a whatevername.js file and put page specific logic inside it. (Alternative ways with routing and components)
Inside that js file, target the page by it's data-name, and the page event you want it to be run at.
Example: on my html page called home
<div class="page" data-name="home"> with whatever normal html the page has inside it.
In my js file I would run js on it by using this
$$(document).on('page:init', '.page[data-name="home"]', function (e) {
//whatever code here
alert('Hello World!');
})
So on the home page, on its init event, it will trigger the javascript that has alert hello world.
Starting from a template will make it easier to see how different parts work within F7. https://framework7.io/templates/ The Single View is a good starting point.

Custom social media site posting process not posting to user's profile

I'm working on a social media site for a client that was built by another company. Currently I'm working on the posting system where users can post. The original code had it where users had to go through 3 steps first then hit the button to post. The client wanted to remove the steps and just have it setup similar to facebook. I moved the code around and removed the steps but the "Post" button doesn't work now. When I click on it, it just says "Posting" and doesn't do anything else.
If you go to seegossip.com and sign up as a user and login, click on the orange smileys icon in the top right, it will bring up the posting popup.
Below is the original posting process code:
<div class="popup close">
<div class="left">
<div class="sectionn1 follow" id="box1">
<div class="popup-heading">Follow the steps and start gossiping!</div>
<div class="follow2">*Tip: you can do all three on the same Post! </div>
<div class="type">
</div>
<div class="get">
<button type="button" onClick="openpopup(2)">Get Started!</button>
</div>
<div class="popupclose">
<a class="new_post_close" >
<img src="images/into-logo.png" /> <div class="popupclose-c">Cancel</div>
</a>
</div>
</div>
<div class="sectionn1" id="box2" align="center">
<div class="popup-heading">Step1: Type away!</div>
<div class="user-post-main">
<div class="add-pics">
<div class="user-post"> <br clear="all" />
<form id="post" id="form" name="form" action="" method="post">
<div class="user-post-middle">
<div class="post-area">
<input type="text" placeholder="Type your post's Title here" class="input" name="postname" id="postname"/>
<span class='status'></span>
</div>
<div class="post-area">
<textarea placeholder="Type your post's here" class="textarea" rows="5" name="posttext" id="posttext"/></textarea>
<span class='status'></span>
</div>
<div class="post-area">
<input type="text" placeholder="Enter a Custom URL Here" class="input" name="posturl" id="posturl"/>
<span class='status'></span>
</div>
<br clear="all" />
</div>
</form>
<div class="red">
<div>
<div id="dropzone" class="drop">
<form action="upload/" class="dropzone" id="my-dropzone">
<input type="hidden" name="postid" value="<?php echo $_REQUEST['post_id'];?>">
<input type="hidden" name="userid" value="<?php echo $_SESSION['sguser_id'];?>">
</form>
</div>
<div id="dropzone1" class="dropzone zone"> </div>
</div><br clear="all" />
<!--<button type="button" onclick="openpopup(4)" >Lets Add Some Videos! ></button>-->
</div>
</div>
<div class="green">
<div>
<div id="dropzone" class="drop">
<form action="upload/" class="dropzone" id="my-dropzone2">
</form>
</div>
<div id="dropzone2" class="dropzone zone"></div>
</div><br clear="all" />
<div class="some">
<div class="button"><button type="button" name="create_new_post" id="create_new_post" >Post</button></div>
</div>
</div>
</div>
</div>
<div class="popupclose">
<a class="new_post_close" >
<img src="images/into-logo.png" /> <div class="close-c">Cancel</div>
</a>
</div>
</div>
</div>
</div>
<!----------------------popup3---------------------------->
<div class="sectionn1" id="box3" align="center">
<div class="popup-heading"> Step2: Let's Add Some Pics!</div>
<span style="font-style:italic; font-size:16px;">No Picture? No Problem Simply Continue to the Next Step! </span><br clear="all" />
<div class="user-post-main">
<div class="user-post1">
<div class="user-post">
<div class="popupclose">
<a class="new_post_close" >
<img src="images/into-logo.png" /> <div class="close-c">Cancel</div>
</a>
</div>
</div>
<div class="right-icn">
<div style="background-image:url(images/left1.png); width:50px; height:50px" class="left1"></div>
<div style="background-image:url(images/left2.png); width:50px; height:50px" class="left2"></div>
<div style="background-image:url(images/left3.png); width:50px; height:50px" class="left3"></div>
</div>
</div>
</div>
<!-------------------------------popup-4--------------------->
<style>
.dz-default.dz-message {
background-size:100px !important;
}
</style>
<div class="sectionn1" id="box4" align="center">
<div class="popup-heading">Step3: Let's Add Some Videos!</div>
No Videos? No Problem Simply click on POST!<br clear="all" /><br />
<div class="user-post-main">
<div class="user-post1">
<div class="user-post">
<div class="popupclose">
<a class="new_post_close" >
<img src="images/into-logo.png" /> <div class="close-c">Cancel</div>
</a>
</div>
</div>
<div class="right-icn">
<div style="background-image:url(images/left1.png); width:50px; height:50px" class="left1"></div>
<div style="background-image:url(images/left2.png); width:50px; height:50px" class="left2"></div>
<div style="background-image:url(images/left3.png); width:50px; height:50px" class="left3"></div>
</div>
</div>
</div>
</div>
<!--------------------------popup-->
And here's the new code for the posting process:
<div class="popup close">
<div class="sectionn1 follow" id="box1">
<div class="user-post">
<!-- UPLOAD PICS -->
<div class="popupclose">
<a class="new_post_close">
<div class="close-c">
</div></a>
</div>
<div class="drop" id="dropzone">
<form action="upload/" class="dropzone" id="my-dropzone" name="my-dropzone">
<input name="postid" type="hidden" value="<?php echo $_REQUEST['post_id'];?>"> <input name="userid" type="hidden" value="<?php echo $_SESSION['sguser_id'];?>">
</form>
<p>Add Photo(s)</p>
</div>
<div class="dropzone zone" id="dropzone1">
</div>
<!-- UPLOAD VIDEOs -->
<div class="drop" id="dropzone">
<form action="upload/" class="dropzone" id="my-dropzone2" name="my-dropzone2">
</form>
<p>Add Video</p>
</div>
<div class="dropzone zone" id="dropzone2">
</div>
</div>
<!-- POST AREA -->
<form action="" id="post" method="post" name="form">
<textarea class="textarea" id="posttext" name="posttext" placeholder="What's on your mind, today?" rows="5"></textarea>
</form>
<div class="bottom-buttons">
<div class="button">
<button id="create_new_post" name="create_new_post" type="button">
<p>Post</p></button>
</div>
</div>
</div>
</div>
Below is the script for the popup where I think the error is.
$(document).on('click','a#opennewpostpopup',function(data){
if($('.popup').hasClass('close')) {
postpopup(0);
openpopup(1);
}
});
$(document).on('click','.openpostpopup',function(data){
postpopup(5,this);
});
function openpopup(p){
if(p){
$('.glass, .popupglass').fadeIn();
$('.popup').removeClass('close');
$('.sectionn1').removeClass('active');
$('#box'+p).addClass('active');
$('body').addClass('short_page');
if(p==3) $('#my-dropzone .dz-default span').html('Drag and Drop your pictures here!')
if(p==4) $('#my-dropzone2 .dz-default span').html('Drag and Drop your Videos here,');
}
else {
$('.glass , .popupglass').fadeOut();
$('.popup').addClass('close');
$('body').removeClass('short_page');
$('.sectionn1').removeClass('active');
$('#post .post-area .input,#post .post-area .textarea').each(function(){ $(this).val(''); });
$('span.status').removeClass('success').removeClass('error');
$('.dz-preview').remove();
$('[name=post_id]').remove();
}
}
function createPostId(popup){
id = $('input[name=post_id]').val();
if(typeof cnprpost == 'undefined' && !id){
cnprpost = $.post("ajax.php",{action:'createPost',posttext:$('#posttext').val()},function(data){
$('#my-dropzone, #my-dropzone2').not(':has(input[name=post_id])').prepend('<input type="hidden" name="post_id" value="'+data+'">');
openpopup(popup);
delete cnprpost;
});
}else openpopup(popup);
}
$('.new_post_close').on('click',function(data){
id=$('form.dropzone [name=post_id]').val();
if(id) {
var conf=confirm("Your Post is Not Published\nClick Cancel to Continue or\nClick OK to Cancel\nYour Uploads will remove if you Click Ok");
if(conf){
openpopup(0);
$.post("ajax.php",{action:"deletepost",post_id:id},function(data){
});
}
}else openpopup(0);
});
$('#create_new_post').on('click',function(){
post_id=$('[name=post_id]').val();
postTitle = $('#post input[name=postname]').val();
postContent = $('#post textarea[name=posttext]').val();
postUrl = $('#post input[name=posturl]').val();
dis=this;
$(dis).html('Posting...');
if(typeof pprpost == 'undefined' && post_id )
pprpost =$.post("ajax.php",{action:'publishpost',post_id:post_id,posttitle:postTitle,posttext:postContent,posturl:postUrl},function(data){
if(data==1) { openpopup(0); }
else { $(dis).html('Try Again...'); }
delete pprpost
});
});
window.onbeforeunload = function() {
id=$('[name=post_id]').val();
if(!$('.popup').hasClass('close') && id){
return "Your Post is Not Published\nClick Cancel to Continue or\nClick OK to Cancel\nYour Uploads will remove if you Click Ok";
$.post("ajax.php",{action:"deletepost",post_id:id},function(data){ });
}
}
This is a little advanced for me and I've been stuck on this site for a couple weeks trying to figure out what the problem is so please help.

html2canvas save image after change img src

I am using html2canvas to save html as image.
My html code is as follows
<div id="target" class="center-block imgStruc" style="width:92%;">
<div class="center-block eventName makeMeDraggable box">
<div class="text">
<div class="text1">Test Data</div>
</div>
</div>
<div class="imgCont clearfix"><img src="http://mydomainname/image.jpg" alt="" class="img-responsive" id="changeImg"></div>
</div>
<div class="col-sm-6">
<input type="submit" value="Save & Continue »" onClick="snap_onclick()"/>
<form method="POST" enctype="multipart/form-data" action="savecard.php" id="myForm">
<input type="hidden" name="img_val" id="img_val" value="" />
</form>
</div>
My javascript is as follows
function snap_onclick() {
$('#target').html2canvas({
onrendered: function (canvas) {
$('#img_val').val(canvas.toDataURL("image/png"));
document.getElementById("myForm").submit();
}
});
}
Image of target div has been created. But when I change image src of changeImg using following jquery code
function changeImage()
{
$('#changeImg').attr('src','http://mydomainname/path-to-image/image.jpg');
}
and then click on save button, it creates image with text part only, changed image has not come.
save.php is as follows
<?php
//Get the base-64 string from data
//echo $_POST['img_val'];
$filteredData=substr($_POST['img_val'], strpos($_POST['img_val'], ",")+1);
//Decode the string
$unencodedData=base64_decode($filteredData);
//Save the image
file_put_contents('img.png', $unencodedData);
?>
<h2>Save the image and show to user</h2>
<table>
<tr>
<td>
<a href="img.png" target="blank">
Click Here to See The Image Saved to Server</a>
</td>
<td align="right">
<a href="index.php">
Click Here to Go Back</a>
</td>
</tr>
<tr>
<td colspan="2">
<br />
<br />
<span>
Here is Client-sided image:
</span>
<br />
<?php
//Show the image
echo '<img src="'.$_POST['img_val'].'" />';
?>
</td>
</tr>
</table>
<style type="text/css">
body, a, span {
font-family: Tahoma; font-size: 10pt; font-weight: bold;
}
</style>
new image is in the same domain.

Ok, don't add the button as before....
You have an html like this?(I sobstitute the image with others online....)
<div class="col-md-3 col-sm-4 col-xs-4 single-right-grid-left">
<a onclick="changeImage()"> <img style="width:50px;" id="drag1" class="drag" alt="" src="http://beblex.it/wp/wp-content/uploads/2014/05/Online1.jpg">
</a>
</div>
<div id="target" class="center-block imgStruc" style="width:92%;">
<div class="center-block eventName makeMeDraggable box">
<div class="text">
<div class="text1">Test Data</div>
</div>
</div>
<div class="imgCont clearfix">
<img src="http://www.bottegamonastica.org/wp-content/uploads/Finalmente-Online.jpg" alt="" class="img-responsive" id="changeImg" style="width:50px;">
</div>
</div>
<div class="col-sm-6">
<input type="submit" value="Save & Continue »" onClick="snap_onclick()"/>
<form method="POST" enctype="multipart/form-data" action="savecard.php" id="myForm">
<input type="hidden" name="img_val" id="img_val" value="" />
</form>
</div>
The js is the same as you paste....

Javascript form submission validation is not working

I am unsure why my javascript form submission validation is not working – any help would be much appreciated.
I have 2 tables with a class: table-first & table second
Using media query, when screen is less than 740px table-first is hidden and table-second is displayed
table-first has a class “voucher_input” on the input field for a voucher &
table-second has a class called “voucher-input2” on the voucher input field
I have written a javascript to prevent submission of the form if the voucher input field is empty
And if empty it should prompt up an error message
The code works well for “table-first” with the class “voucher-input” – a form is not submitted when the voucher input field is empty
But the code does not work well with “table-second” with the class “voucher-input2” – the form submits with an empty voucher input field.
Can one please advise me on what is wrong with my code as I want the input fields with the “voucher-input” & “voucher-input2” to prompt up an error message when the field is empty
My code are as below. Many thanks
my javascript code: is intended to prompt up an error message if the voucher fields with the class voucher_input & voucher_input2 are empty - it currently only prompts up an error message for voucher_input and not voucher_input2
$(document).ready(function () {
var form = $("#vouchers_form");
$("#vouchers_form").on("submit", function(e){
// e.preventDefault();
var voucher_input = $('.voucher_input').val();
var voucher_input2 = $('.voucher_input2').val();
if (voucher_input.length < 1) {
$("#popupErrorConfirmVoucherEmpty").popup("open", { transition: "fade", history: false });
return false;
}
else if (voucher_input2.length < 1) {
$("#popupErrorConfirmVoucherEmpty").popup("open", { transition: "fade", history: false });
return false;
}
else {
form.submit();
}
});
});
html code: table-first with the input field <input class="required voucher_input" id="voucher" name="voucher" placeholder="Enter Promo Code" type="text" value="" />
<div class="main-table table-first">
<div class="table-header">select a payment option</div>
<div class="table-content-container">
<div class="table-content">
<div class="table-container">
<table>
<tbody>
<tr>
<td class="left-content">
<div>
<div class="hidden" id="paypal_express_checkout"><input type="checkbox" checked="checked" value="10147608"/></div>
<p>
<a href="#" id="express_checkout_btn" onclick="paypalPaidAccessSelected();" type="submit" value="Submit">
<img alt="" height="48" src="../../account/gallery/6759612/images/paypal-button.png" width="242" />
<!-- <input id="express_checkout_btn" onclick="paypalPaidAccessSelected();" type="submit" value="Submit" /></p> -->
</a>
</p>
</div>
</td>
</tr>
<tr>
<td class="left-content">
<div class="cards-visa-master">
<div class="inner-inner-container">
<img alt="" src="../../account/gallery/6759612/images/card-visa.png" />
<img alt="" src="../../account/gallery/6759612/images/card-master.png" />
</div>
</div>
</td>
<td>
<form action="//manager.odyssys.net/account//signin/voucher" data-ajax="false" id="vouchers_form" method="post">
<ul>
<li>
<div class="check-button" id="terms"><input class="hidden" id="accept_terms_vouchers_container" name="checkbox" onclick="termsChecked();" type="checkbox" /> </div>
<div class="check-button" id="promotions"><input class="hidden" id="accept_promotions_vouchers_container" name="checkbox" onclick="promotionsChecked();" type="checkbox" /> </div>
<div><input id="voucher_login_btn" type="submit" value="apply" /></div>
</li>
<li>
<p class="voucher-header">Do you have a Promo code?</p>
<div><input class="required voucher_input" id="voucher" name="voucher" placeholder="Enter Promo Code" type="text" value="" /></div>
</li>
</ul>
</form>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
<!-- msg start -->
<div class="popup error" data-role="popup" id="popupErrorConfirmVoucherEmpty">
<a class="ui-btn-right" data-icon="delete" data-iconpos="notext" data-rel="back" data-role="button" data-theme="a" href="#">Close</a>
<p style="padding: 10px; color: red">You must enter a voucher code</p>
</div>
<!-- msg start -->
</div>
html code: table-second with the input field <input class="required voucher_input2" id="voucher" name="voucher" placeholder="Enter Promo Code" type="text" value="" />
<!-- reponsive design displayed when width screen is below 740px -->
<div class="main-table table-second">
<div class="table-header">select a payment option</div>
<div class="table-content-container">
<div class="table-content">
<div class="table-container">
<table>
<tbody>
<tr>
<td class="left-content paypal">
<div>
<div class="hidden" id="paypal_express_checkout"><input type="checkbox" checked="checked" value="10147608"/></div>
<p>
<a href="#" id="express_checkout_btn" onclick="paypalPaidAccessSelected();" type="submit" value="Submit">
<img alt="" height="48" src="../../account/gallery/6759612/images/paypal-button.png" width="242" />
<!-- <input id="express_checkout_btn" onclick="paypalPaidAccessSelected();" type="submit" value="Submit" /></p> -->
</a>
</p>
</div>
</td>
</tr>
<tr>
<td class="left-content card">
<div class="cards-visa-master">
<div class="cards-visa-master">
<div class="inner-inner-container">
<img alt="" src="../../account/gallery/6759612/images/card-visa.png" />
<img alt="" src="../../account/gallery/6759612/images/card-master.png" />
</div>
</div>
</div>
</td>
</tr>
<tr>
<td>
<form action="//manager.odyssys.net/account//signin/voucher" data-ajax="false" id="vouchers_form" method="post">
<p class="voucher-header ">Do you have a Promo code?</p>
<div><input class="required voucher_input2" id="voucher" name="voucher" placeholder="Enter Promo Code" type="text" value="" /></div>
<div class="check-button" id="terms"><input class="hidden" id="accept_terms_vouchers_container" name="checkbox" onclick="termsChecked();" type="checkbox" /> </div>
<div class="check-button" id="promotions"><input class="hidden" id="accept_promotions_vouchers_container" name="checkbox" onclick="promotionsChecked();" type="checkbox" /> </div>
<div><input id="voucher_login_btn" type="submit" value="apply" /></div>
</form>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<!-- msg start -->
<div class="popup error" data-role="popup" id="popupErrorConfirmVoucherEmpty">
<a class="ui-btn-right" data-icon="delete" data-iconpos="notext" data-rel="back" data-role="button" data-theme="a" href="#">Close</a>
<p style="padding: 10px; color: red">You must enter a voucher code</p>
</div>
<!-- msg start -->
</div>
</div>

The error may be due to a duplicate ID on the page.
If both of these tables are on the same page the error block shouldn't have the same ID (popupErrorConfirmVoucherEmpty) as there should only be one ID on the page. Try changing the name of the second one to popupErrorConfirmVoucherEmpty2 and altering the JS accordingly

Javascript : how to know which tab is active

In my code i am using six tabs now i want to know which tab is active .one more thing is that each tab call the same function on clicking and i want to check activation tab(either tab1,tab2 ..) on button click which call other function and in that function i want to check active tab below i explain my problem with code
If i say my problem in one line that want to know active tab on clicking button which call javascript function ,function not on tab clicking*
here i m not putting all code of pages but only require code ,Hope you understand my problems and i provide needed code
Thanks in advance
Add.jsp
This is the page on which i am using tabs
<form action="AddInspServlet" method="Post" enctype="multipart/form-data"> <div>
<div id="slider">
<div class="form-step" >
<div class="row">
<div class="form-left">container Number *</div>
<div class="form-right"><input type="text" id="fname" name="contno" class="form-input" onblur="sending(this.value)"/></div>
<div class="form-error"></div>
</div>
<div class="row">
<div class="form-left">Container type *</div>
<div class="form-right"><input type="text" id="lname" name="conttype" disabled="disabled" class="form-input" /></div>
<div class="form-error"></div>
</div>
<div class="row">
<div class="form-left">Inspection type *</div>
<div class="form-right">
<select id="gender" name="insptype">
<option value="0">Select</option>
<option value="Gate In">Gate In</option>
<option value="Gate Out">Gte Out</option>
</select>
</div>
<div class="form-error"></div>
</div>
<div class="row">
<div class="form-left">Place</div>
<div class="form-right"><input type="text" id="places" name="places" class="form-input" /></div>
<div class="form-error"></div>
</div>
</div>
<div class="form-step" >
<div class="form-left1">
<div class="container1">
<ul class="tabs">
<li>Left</li>
<li>Right</li>
<li>Top</li>
<li>Bottom</li>
<li>Front</li>
<li>Rear</li>
</ul>
<div class="tab_container">
<div id="tab1" class="tab_content">
<div id="hidendiv"></div>
<h2>Left Side</h2>
<div id="leftside">
</div>
<input type="file" name="img1" id="img1" onchange="return ValidateFileUpload('img1')" />
</div>
<div id="tab2" class="tab_content">
<h2>Right Side</h2>
<div id="rightside">
</div>
<input type="file" name="img2" id="img2" onchange="return ValidateFileUpload('img2')" />
</div>
<div id="tab3" class="tab_content">
<h2>Top Side</h2>
<div id="topside">
</div>
<input type="file" name="img3" id="img3" onchange="return ValidateFileUpload('img3')" />
</div>
<div id="tab4" class="tab_content">
<h2>Bottom Side</h2>
<div id="bottomside">
</div>
<input type="file" name="img4" id="img4" onchange="return ValidateFileUpload('img4')" />
</div>
<div id="tab5" class="tab_content">
<h2>Front Side</h2>
<div id="frontside">
</div>
<input type="file" name="img5" id="img5" onchange="return ValidateFileUpload('img5')" />
</div>
<div id="tab6" class="tab_content">
<h2>Rear Side</h2>
<div id="rearside">
</div>
<input type="file" name="img6" id="img6" onchange="return ValidateFileUpload('img6')" />
</div>
</div>
</div>
</div>
<div class="form-right1">
<img src="images/noimg.jpg" height="288px" width="400px" id="blah">
</div>
<div style=" width: 200px; margin-top:225px; margin-left:300px">Remarks: <input type="text" width="100px" name="remark"/></div>
</div>
</div>
</div>
<div class= "ash" style="width:auto; margin-left:35%; float: left;">
<input type="submit" name="btn" id="submit" value="AddInspection" onclick="im()" />
<input type="submit" name="btn" value="Cancel"/>
</div>
</form>
JAVA Script function:
This is the function on which i want to know which tab is active that is defined in above jsp
<script type="text/javascript">
function im()
{
/*alert("calling im function");
var tabname = document.getElementById("tab1");
if(tabname){
alert("tab1 is active");
}else{
alert("tab 1 is not active");
}*/
if($('#img1').val()=="" || $('#img2').val()=="" || $('#img3').val()=="" || $('#img4').val()=="" || $('#img5').val()=="" || $('#img6').val()=="")
{
alert("Please select image");
$('#submit').prop('disabled',true);
}
else
{
$('#submit').prop('disabled',false);
}
}

Try like
$('.tab').click(function(){
var a=$(this).attr('id');
$('#sample').html('Active Tab is'+a);
});
Fiddle

you can assign same class to all tab and bind the click function in document ready, you will get the current object by 'this'.
$('.tab').click(function(){
$(this).val();
});

$('.tab').click(function(){
var x=$(this).prop('id');
$('#lbl').html('Active Tab'+ x);
});

I'm new here but you could add a worthless class to the active tab on click, then on the button click retrieve the id or whatever you want.
jQuery
//edit: added function to add and remove class, replaced text to illustrate
$(function () {
$('.tab_content').click(function () {
$('.tab_content').removeClass('active').text('');
$(this).addClass('active').text('am active');
})
$('#button').click(function () {
$('.tab_content').each(function () {
if ($(this).hasClass('active')) {
alert($(this).attr('id')+" is the active tab");
alert($(this).text()+" is the text");
}
});
});
});
html
<div id='1' class='tab_content'>not</div>
<div id='2' class='tab_content active'>am active</div>
<div id='3' class='tab_content'>not</div>
<div id='4' class='tab_content'>not</div>
<button id='button' style='width:50px; height:50px;'>Click</button>
Here is a working fiddle: http://jsfiddle.net/Lv5VJ/2/
I'm sure there are better ways but hey, I'm trying haha.