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Javascript - How can I differentiate a click and a double click on one element

I am trying to add a click function that triggers when a button is clicked. I am also trying to figure out how to add a double click function onto the same element, that triggers a different event.
var click = false;
onEvent("image2", "click", function(event) {
click = true;
});
if (click === true) {
setTimeout(function() {
onEvent("image2", "click", function(event) {
setScreen("safeScreen");
console.log("double click");
});
}, 200);
} else {
onEvent("image2", "dblclick", function(event) {
setScreen("safeScreen");
console.log("click");
});
}
This code is completely wrong, but I don't know where to start/correct. What am I doing wrong?

You should replace click with dblclick
Also check this link

How to combine Hover, Out, Click event together

var bar = $('.div_layer_Class');
$('a.second_line').click(function() {
$(this).unbind('mouseout');
}).mouseover(function() {
bar.css('display','inline');
}).mouseout(function() {
bar.css('display','none');
});
now the issue with 'onBodyclick' when i click anywhere on body again i want to invoke mouseoutevent something like this
$('body').click(function() {
bar.css('display','none');
event.preventDefault();
});
when I do this it overlaps $('a.second_line').click(function() event. any idea how I can Achieve this.
http://jsfiddle.net/qGJH4/56/

In addition to e.stopPropagation(),
you can do 2 things:
make a variable to reference the mouseout event handler so you can re-bind it whenever the user clicks elsewhere to the body.
or
A variable to store to whether a.second_line is focused or not. Something like
var focused = false;
You code now will be:
var bar = $('.div_layer_Class');
var focused = false;
$('a.second_line').click(function(e) {
focused = true;
e.stopPropagation();
}).mouseover(function() {
bar.css('display','inline');
}).mouseout(function() {
if (!focused)
bar.css('display','none');
});
$(document).click(function(e){
bar.css('display','none');
focused = false;
});

Example here
Try changing your code to this
var bar = $('.div_layer_Class');
$('a.second_line').click(function(e) {
bar.addClass('on');
e.stopPropagation();
}).mouseover(function() {
bar.css('display','inline');
}).mouseout(function() {
if(!bar.hasClass('on'))
bar.css('display','none');
});
$(document).on('click',function(){
bar.removeClass('on');
bar.css('display','none');
//return false;
});
Two lines to look at, first, the e in function(e)
$('a.second_line').click(function(e) {
and the stop e.stopPropagation();
That basically stops any parent handlers being notified. Read here

hiding div when clicked outside the div

Please look at the code here : http://jsbin.com/esokic/10/edit#source
When I click on customer support a div is shown
What I want is when someone clicks out of the div, the div should hide, I tried a couple of things, but they don't seem to work..
$(document.body).one("click", function() {$(".cust-support-outer").hide();
});
Also:
$("body").click(function(e){
if(e.target.className !== "csupport-drop")
{
$(".cust-support-outer").hide();
}
});
Would appreciate any help...
--Arnab

Arnab
I did this change in your js and worked
try this, use this js code
$(function(){
$(".csupport-drop").click(function(){
$(".csupport-drop").addClass("active-drop-tab");
$(".cust-support-outer").show();
return false
});
$(document).bind("click", function(e) {
if(!$(e.target).hasClass("get-daily-alerts-outer")){
$(".get-daily-alerts-outer").hide()
}
});
$(".close").click(function(){$(".get-daily-alerts-outer").hide();
return false
});
$(".get-deal-alerts").click(function(){$(".get-daily-alerts-outer").show();
return false
});
});
I just changed how you bind the "click" event to the document and pass the Event object to the function so you can check over what element the click event was fire.

Try:
var mouse_is_inside = false;
$(document).ready(function()
{
$('.cust-support-outer').hover(function(){
mouse_is_inside=true;
}, function(){
mouse_is_inside=false;
});
$("body").mouseup(function(){
if(! mouse_is_inside) $('.cust-support-outer').hide();
});
});

Bind this to body
$("body").click(function() {
if ($(this).attr("class") == "cust-support-outer") {
// inside
} else {
// not inside
}
});

Why isn't my checkbox change event triggered?

I have two functions.
The first function translates a div click into a checked/unchecked toggle.
The second function translates a checkbox change into a hide/show event.
The problem is that when I use the first function to check/uncheck the box, the second function is not called. I am new to javascript, thanks.
<script type="text/javascript">
$(document).ready(function() {
$(":checkbox").parent().click(function(evt) {
if (evt.target.type !== 'checkbox') {
var $checkbox = $(":checkbox", this);
$checkbox.attr('checked', !$checkbox.attr('checked'));
evt.stopPropagation();
return false;
}
});
});
</script>
<script type="text/javascript">
$(document).ready(function() {
$(":checkbox").change(function() {
if($(this).attr("checked")) {
$('.'+this.id).show();
}
else {
$('.'+this.id).hide();
}
});
});
</script>

The change event does not fire when you programmatically change the value of a check box. What you can do to ensure it fires is:
$(":checkbox").parent().click(function(evt) {
if (evt.target.type !== 'checkbox') {
var $checkbox = $(":checkbox", this);
$checkbox.attr('checked', !$checkbox.attr('checked'));
$checkbox.change();
}
});

Don't bother with the first snippet. Just use LABEL elements:
<label><input type="checkbox">Some option</label>
Now, when the user clicks the label (the text next to the checkbox), the checkbox will be activated.
The second snippet can be optimized:
$('input:checkbox').change(function() {
$('#' + this.id).toggle(this.checked);
});

you are using '.' which is for class selectors instead use '#' since you are using the element ID. Like this:
$(document).ready(function() {
$(":checkbox").bind('change', function() {
if($(this).attr("checked")) {
$('#'+this.id).show();
}
else {
$('#'+this.id).hide();
}
});
});

jQuery is mousedown on mouseover

I have a table where i want to change cell background on mouse over and mouse button down, my current solution doesn't work as I want it to :
function ChangeColor(sender) {
sender.style.backgroundColor = 'yellow';
}
var clicking = false;
$(document).mouseup(function() {
clicking = false;
});
$(document).ready(function() {
$('#Table1 tr').each(function() {
$('td', this).each(function() {
$(this).mousedown(function() {
clicking = true;
});
$(this).mousedown(function(event) {
if (clicking==true) { ChangeColor(this); }
});
});
});
});
Is there any way to make it work like that ?

EDIT: Given your comment above, you could do something like this:
$(document).ready(function() {
isMouseDown = false
$('body').mousedown(function() {
isMouseDown = true;
})
.mouseup(function() {
isMouseDown = false;
});
$('Table1 tr td').mouseenter(function() {
if(isMouseDown)
$(this).css({backgroundColor:'orange'});
});
});
This will color the background of the td when you mouseover, but only if the mouse button is down.
Sounds like you just want to change the color when you click. If that's the case, it is much simpler than what you're attempting.
$(document).ready() {
$('#Table1 tr td').click(function() {
$(this).css({backgroundColor:'yellow'});
});
});
This will change the background of the td elements yellow when you click them.
It will be similar to change the color when you mouseover.
EDIT: Just noticed the title of your question.
If you want to trigger a click when you hover...
$(document).ready() {
$('#Table1 tr td').click(function() {
$(this).css({backgroundColor:'yellow'});
})
.mouseenter(function() {
$(this).click();
});
});
...of course, you could eliminate the click in that case and just change the background with the mouseenter event.