Javascript - Disabled and Re-enable select form element

Hi,

I have an online form which has a select element, which I;m using very basic JS to enable and disable a select element based on the selection of another select element.

For some reason, the JS disables the select element correctly, but it does not re-enable it. Could someone please help with the right code.

here is the Javascript code.

Expand|Select|Wrap|Line Numbers

 
function annconf() {
 
var vfullearly = document.getElementById('fullearly').value;
 
if (vfullearly = 1)

    {

        document.getElementById('fullnorm').disabled=true;
 
    }

else if (vfullearly = 0)

    {

        document.getElementById('fullnorm').disabled=false;

    }
 
}

The HTML form:

Expand|Select|Wrap|Line Numbers

 <form>
 
Price early: 

  <label>

    <select name="Full, Early Bird" id="fullearly" onchange="annconf();">

<option value="0">No</option>

<option value="1">Yes</option>

</select>

  </label>

</p>

<p> Price Normal: 

  <select name="Full, Normal" id="fullnorm">

    <option value="0">No</option>

    <option value="1">Yes</option>

  </select>

<form>

May 2 '09 #1

Subscribe Post Reply

20422

omerbutt

638

512MB

have a look@ this one mybe it will help

Expand|Select|Wrap|Line Numbers

 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

<title>Untitled</title>

<script language="JavaScript" type="text/javascript">

<!--

function checkSel(selName,selIndex,val,val2){

if(selName=="sel1"&&selIndex!=0){

document.forms[0]['sel'+val].disabled=false;

}

if(selName=="sel1"&&selIndex==0){

document.forms[0]['sel'+val].disabled=true;

document.forms[0]['sel'+val2].disabled=true;

document.forms[0]['sel'+val].selectedIndex=0;

document.forms[0]['sel'+val2].selectedIndex=0;

}

if(selName=="sel2"&&selIndex!=0){

document.forms[0]['sel'+val].disabled=false;

}

if(selName=="sel2"&&selIndex==0){

document.forms[0]['sel'+val].disabled=true;

document.forms[0]['sel'+val].selectedIndex=0;

}

}

//-->

</script>

</head>

<body>

<form>

<select name="sel1" onchange="checkSel(this.name,this.selectedIndex,2,3)">

<option>select</option>

<option>blah1_1</option>

<option>blah1_2</option>

<option>blah1_3</option>

</select>

<select name="sel2" disabled onchange="checkSel(this.name,this.selectedIndex,3)">

<option>select</option>

<option>blah2_1</option>

<option>blah2_2</option>

<option>blah2_3</option>

</select>

<select name="sel3" disabled>

<option>select</option>

<option>blah3_1</option>

<option>blah3_2</option>

<option>blah3_3</option>

</select>

</form>

</body>

</html>

May 2 '09 #2

acoder

16,027

Expert Mod 8TB

The problem in your code, cptuser, is that in this line, for example

Expand|Select|Wrap|Line Numbers

if (vfullearly = 1)

you're setting instead of comparing. Use double equals to compare:

Expand|Select|Wrap|Line Numbers

if (vfullearly == 1)

May 2 '09 #3

cptuser

Terrific thanks!
"=" means set
"==" means compare

May 2 '09 #4

acoder

16,027

Expert Mod 8TB

Yep, that's correct :)

May 2 '09 #5

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