Text in Text box disappears !!!

**kfaizan** · 06-29-2012 11:24 PM

Aoa,

i am new and learning Javscript... m making a temperature converter .. why does the result in the texbox dissappear when i click the convert button???

**007Julien** · 06-30-2012 07:04 AM

Probably, because your code remove It ! But we are not soothsayers... A little wraped code (the three last buttons) will be useful !

**Padonak** · 06-30-2012 08:57 AM

maybe voodoo affected?..

**pixxeldigital** · 07-01-2012 11:34 PM

check your code and if your code problem post your code here. and i will find problem in your code

**kfaizan** · 07-04-2012 02:55 AM

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>

<script type="text/javascript">

function CFtoC()
{
var a=0;
a = (document.Tform.FtoC1.value -32) * 5/9;
document.Tform.FtoC2.value = a;
}
function CCtoF()
{
document.Tform.CtoF2.value = ((document.Tform.CtoF1.value)* 9/5) +32;
}

function Reset()
{
document.Tform.FtoC1.value = null;
document.Tform.FtoC2.value = null;
document.Tform.CtoF1.value = null;
document.Tform.CtoF2.value = null;

document.Bform.BA.value= null;
document.Bform.t15.value= null;
document.Bform.t25.value= null;
}

</script>

</head>

<body>

<h1>Temperature Converter</h1>

<hr />
<br />

<form name="Tform">

<b>F<b><input type="text" name="FtoC1" />TO<input type="text" name="FtoC2" /><b>C<b>

<button name="btn1" onclick="CFtoC()">Convert</button>

<br />
<b>C<b><input type="text" name="CtoF1" />TO<input type="text" name="CtoF2" /><b>F<b>
<button name="btn2" onclick="CCtoF()">Convert</button>

<br />
<br />

<button name="R" onclick="Reset()">Reset</button>

</form>

</body>
</html>

**kfaizan** · 07-04-2012 02:59 AM

When I run it on DreamWeaver it Works perfectly fine ... But When i run it on Chrome,firefox,IE .. The same problem occurs... thanx

**Logic Ali** · 07-04-2012 05:58 AM

Originally Posted by kfaizan

When I run it on DreamWeaver it Works perfectly fine ... But When i run it on Chrome,firefox,IE .. The same problem occurs... thanx

You need to suppress submission of the form:

Code:

onclick="CFtoC();return false"

or better because it only has to be done once:

Code:

<form onsubmit='return false' >

**kfaizan** · 07-07-2012 09:03 AM

Originally Posted by Logic Ali

You need to suppress submission of the form:

Code:

onclick="CFtoC();return false"

or better because it only has to be done once:

Code:

<form onsubmit='return false' >

Why do we need to return false please explain me what does it do in the inside when we return false... why do we need to suppress submission of the form.??? thanx

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