JavaScript strikethrough string object demo script

Using JavaScript string object strikethrough property we can develop a todo list with checkbox associated with each task or line of text. Based on the checkbox is clicked or not we can strike the line of text . Here we will use javascript strike through string object.
We will also use checkbox onClick event to trigger the JavaScript function to mark as del for the text.

strikethrogh task list

Here is the code of above demo

<!doctype html public "-//w3c//dtd html 3.2//en">
<html>
<head>
<title>Demo of Strikethrough JavaScript string object</title>
<script type="text/javascript">
function my_fun(j){
var chkbox ="ckb" + j;
var my_span ="my_span" + j;
var msg = chkbox + "  " + my_span;
if(document.getElementById(chkbox).checked){ 
document.getElementById(my_span).style.textDecoration='line-through';
}else{
document.getElementById(my_span).style.textDecoration='none';
}
}
</script>
</head>
<body>

<form name=form1 method=post action=check.php>
<input type=checkbox  id=ckb1 value=1 onclick=my_fun(1);><span id='my_span1'>This is job number 1</span>  <br>
<input type=checkbox  id=ckb2 value=2 onclick=my_fun(2);><span id='my_span2'>This is job number 2</span>  <br>
<input type=checkbox  id=ckb3 value=3 onclick=my_fun(3);><span id='my_span3'>This is job number 3</span>  <br>
</form>
</body>
</html>

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Sudhir	22-09-2012
if i want to check all/ unchecked all then how to work check box for Strikethrough text in javascript

Kiran	06-10-2012
Given in a short & simple manner, this is what i am looking for Thank you to the author

Daniele	26-01-2014
Is there a possibility to have the browser to persistently save the action of strikethrogh? Thank you for your time

smo1234	27-01-2014
Yest it is possible, we can use Ajax with any server side script to update database.

stan	09-08-2013
Thanks for this!

Strikethrough text by JavaScript string object

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