javascript not working

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I'm new to this type of code
my html has one textarea i want to clear text when it clicked my clear function in the external JavaScript file in same directory
my code like this where the wronge code is

html file

HTML

<!DOCTYPE html>
<html>
<head>
<script src="clear.js"></script>
</head>
<body>
<br />
<br />

<textarea onkeyup= "changetext();" onselect="changetext();" onclick="changetext();"  önfocus="changetext();" style="font-size: 12pt;
                            width: 500px;" name="box1" rows="7">description here</textarea>
                        
  </body>                     
</html>

my JavaScript file like this

JavaScript

function changetext()
{
if(this.value=='description here') this.value='';
}

Posted 4-May-14 21:52pm

Manoj Chamikara

Updated 4-May-14 21:53pm

v2

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thatraja 5-May-14 4:03am

any error? check debugger(firebug or anything else)

Peter Leow 5-May-14 4:21am

Just curious, do you just want to clear the initial text, i.e. 'description here' which is default when the user start typing into it the textarea? If that is the case, you can add a placeholder attribute inside the textarea tag. no need javascript.

4 solutions

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**Dnyaneshwar**@Pune · Answer 1 · 2014-05-04T22:03:00

Solution 1

Pass ID of the Textbox control as parameter to that javascript function, IT will solve your problem

Posted 4-May-14 22:03pm

Dnyaneshwar@Pune

_Asif_ · Answer 2 · 2014-05-04T22:05:00

Solution 2

Try this

C#

function changetext()
{
if(box1.value=='description here') this.value='';
}

Posted 4-May-14 22:05pm

_Asif_

Sanket Saxena · Answer 3 · 2014-05-04T22:08:00

Could you try like this:

HTML

HTML

<textarea onkeyup="changetext(this);" onselect="changetext(this);" onclick="changetext(this);" önfocus="changetext(this);" style="font-size: 12pt;<br mode=" hold=" />                            width: 500px;" name="box1" rows="7">description here</textarea>

Javascript

JavaScript

function changetext(obj)
{
 if(obj.value=='description here') this.value='';
}

also check the path of your external javascript file is correct or not(just drag n drop it from the solution explorer to the html page.)

DamithSL · Answer 4 · 2014-05-04T22:12:00

JavaScript:

JavaScript

function changetext(element) {
  if(element.value=='description here') element.value='';
}

HTML:

HTML

<textarea onkeyup="changetext(this);" onselect="changetext(this);" onclick="changetext(this);" onfocus="changetext(this);" style="font-size: 12pt;<br mode=" hold=" />                            width: 500px;" name="box1" rows="7">description here</textarea>

javascript not working

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