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append onclick function to div jquery

I'm trying to add an on click function to a div using these lines of code but the click event doesnt trigger the alert.
var str="<script>$(this).on(\"click\",function(){alert('hello');})";
str+="<";
str+="/script>";
$("div:contains('Send')").last().append(str);
I've also tried this and $(this)[0] but these give me the error this.on/ $(this)[0].on is not a function
I don't know what Im doing wrong and would appreciate any and all help on the matter.

Shouldn't have to go through the trouble of creating strings for script. You can just use jquerys .on and register it with a click event.
$("div:contains('Send')").last().on("click", function () {
alert('hello');
})

If you are using jQuery, you can add click event to all the div by using $("div") for selector (just remember to call the function after you load the div)
I have create an example of simple click function
$(".start").click(function() {
$(this).toggleClass("onClick");
})
http://jsfiddle.net/7j6s2Lws/2/
The $(this) will identify which object is actually trigger the event, and choose it only. In my case, if you click on a div, it will change color (of it and only it)

i would choose a slightly different approach. i hope i understood your problem right even though i dont really get what you want to achieve by putting <script> into your string here... maybe this helps:
html
<div id='container'>
<button>Send</button>
</div>
js
var $container = $("div:contains('Send')");
var elementToAppend = "<div class='myClass' style='width:100px; height:100px; border: 1px solid red'>added dynamically ... click me</div>";
appendToContainer($container, elementToAppend);
$('.myClass').click(function($element) {
alert(123);
});
function appendToContainer($container, element) {
$container.append(element);
}
fiddle
http://jsfiddle.net/2pofLnb7/2/

jQuery - Select an element by ID not working

I'm trying to select an element and then add / remove a class. I have achieved this plenty of times with other elements, however for this one it doesn't want to work.
My html is as follows:
<div>
<a class="login-headerText" id="hypLogin" style="padding-right:5px; float:left" >Login</a>
<h4 class="login-headerText" style="font-weight:bold; padding-right:5px; float:left">/</h4>
<a class="login-headerText" id="hypCreateAccount">Create Account</a>
</div>
The div is wrapped inside another div. (id=modal)
I want to select "hypLogin" then add a class to it on click. It works if i do this in the onClick event, however it wont work in a seperate script. (The script is referenced and works as it is used for other elements)
This is my jQuery
$('#hypLogin').click(function () {
$(this).removeClass('login-headerText').addClass('login-headerText-Unselected');
});
Tried debugging it and it's not getting hit at all.
Probably something really simple.

Couple of things:
you must do it on:
$( document ).ready(function() {
});
Does these elements printed dynamically?
try to use:
$('#hypLogin').on('click', function () {
});
try to put your code on modal open event.

Here is working fiddle
try this:
$(document).ready(function () {
$('#hypLogin').click(function () {
$(this).removeClass('login-headerText').addClass('login-headerText-Unselected');
});
});

Trouble with Javascript show when element is outside of the trigger

I am trying to show a div on click on an anchor, the issue is the anchor is inside an element and the div that needs to be shown is outside of this element. There are multiple divs of the same class on the page so I only want to show the associated one.
The markup is:
<div class="wrapper">
<div class="trigger">
Change
</div>
<div class="content">
<p>Content to be shown when Change is clicked</p>
</div>
</div>

Is that what you want to do? (fiddle)
// dom ready
$(function() {
$('a.change').on('click', function() {
// wrapper div
$(this).parent()
.next() // .content div
.show();
return false; // prevent the link to be followed
});
});

With jQuery you can do it like this:
$('a.change').click(function(e) {
e.preventDefault();
$(this).parent().next().toggle();
});
jsFiddle example

is this what you mean?
$(".content").hide();
$("a.change").click(function(){
$(".content",$(this).closest(".wrapper")).show();
});
Live demo :​
http://jsfiddle.net/dfkge/

Got to the parent and get the correct div e.g.
$('a.change').click(function(event){
event.preventDefault();
$(this).parents('.wrapper').children('.content').show()
}
This way you don't have to worry how deeply embedded anchor is, or where is content (before, after) in relation to anchor
Added a jsFiddle, showing divs with different structures, working with same code
http://jsfiddle.net/NWqcq/11/

How can I make entire DIV clickable AND open child links in separate DIV?

I asked a precursor to this question here:
Click link in DIV and show PHP/HTML in separate DIV
Then, after I removed the first script shown below, I was able to get the second script to work. I revised my question, but it appears to have gone silent. So I have a slightly modified question.
What is the conflict between the 2 scripts below and how can I modify them to work in tandem? Basically I want to be able to click anywhere in the DIV (".side_items") and have the child anchor links open in a separate DIV ("#main_content")
Javascript:
<script type="text/javascript">
$(document).ready(function(){
$(".side_items").click(function(){
window.location=$(this).find("a").attr("href");
return false;
})
});
</script>
<script type="text/javascript">
$(document).ready(function(){
$(".side_items a").click(function(e){
e.preventDefault();
$("#main_content").load($(this).attr("href"));
});
});
</script>
HTML: (slightly simplified)
<div id="main_content">
</div>
<div id="right_side">
<div class="side_items">
<a href="content.html">
<img src="images/examplethumb.png" /><br />
Content</a>
</div>
</div>
Both scripts work independently to achieve their individual desired result.

This will do it:
$(document).ready(function(){
$(".side_items").click(function(){
$("#main_content").load($(this).find("a").attr("href"));
return false;
})
});
Breaking it down:
$(".side_items").click(fn);
Find all the elements with a class of side_items and assign a click event handler (fn) to them. Each time one of these elements is clicked, fn is executed with the context of the element. In the discarded code you were using the selector .side_items a, which meant the click handler was only bound to the links inside the div, not the div itself.
$(this).find("a").attr("href")
Find all the links that are contained within the current element (this), and get the value of the href attribute from the first element found. In the discarded code the context (this) was a link. Since our handler is now bound to the containing div, the context is also the div. To get the link you have to find it.
$("#main_content").load(href);
Find the element with an id of main_content and load the content found at href into it. In the discarded code you were setting location.href, which causes the page to navigate away.

I think your issue is that you're trying to assign the $().ready(..) handler twice.
Try combing scripts like this
<script type="text/javascript">
var change_location = function(){
$(".side_items").click(function(){
window.location=$(this).find("a").attr("href");
return false;
});
}
var load_location = function(){
$(".side_items a").click(function(e){
e.preventDefault();
$("#main_content").load($(this).attr("href"));
});
}
$().ready(function(){
change_location();
load_function();
});
</script>
Hope that helps

JQuery advice needed

I have a page and I want to show some paragraphs after clicking a link, before that it should be hidden. So i wrote a simple JQuery code, but the problem is when I click the open link all the other hidden divs are also shown. My code is given below please advice how to solve the issue.
HTML
<div>
Read More
<div class="expand_div">
<img src="images/close_button.gif" width="50" height="12" alt="Close" border="0" />
<p>My hidden content goes here..</p>
</div>
</div>
and I want to repeat the above <div> block 7 times. So when I click the first div's Read more button the remaining 6 hidden divs are also showing!!!
JQuery
<script language="JavaScript">
$(document).ready(function(){
$('a.open_div').click(function(){
$('.expand_div').show();
});
$('a.close_div').click(function(){
$('.expand_div').hide();
});
});
</script>
how to solve this issue..?
any answers would be appreciated!
Thanks
Paul

try this instead of your JQuery code:
<script language="JavaScript">
$(document).ready(function(){
$('a.open_div').click(function(){
$(this).parent().find('.expand_div').show();
});
$('a.close_div').click(function(){
$(this).parent().hide();
});
});
</script>
The problem with your code is that it's selecting ALL divs inside your page. and this is not what you want.
to solve this issue, this code is only limiting the scope of the action to the current link container, so the other divs will remain as is without any change.

Well, the selectors will select all elements with that class. If you keep your structure like this, you can do the following:
$(document).ready(function(){
$('a.open_div').click(function(){
$(this).next().show();
});
$('a.close_div').click(function(){
$(this).closest('.expand_div').hide();
});
});
As the div is the next sibling of the open link, next() will select the div and show it. The close link on the other side is a descendant of the div. closest() will find the closest ancestor that matches the selector.
Of course there are also other ways to select the elements.
See a working DEMO.

In your open event you need to open the "next" element in the DOM:
$('a.open_div').click(function() {
$(this).next().show();
});
In your close event you need to close the enclosing (parent) element:
$('a.close_div').click(function() {
$(this).parent().hide();
});
see http://jsfiddle.net/raybellis/vZbp3/

You are getting all "expand_div" elements and showing them. You need to only select the appropriate elements as related to this element.
<script language="JavaScript">
$(document).ready(function(){
$('a.open_div').click(function(){
$(this).siblings('.expand_div').show();
});
$('a.close_div').click(function(){
$(this).parent().siblings('.expand_div').hide();
});
});
</script>