Solved

How to get value from span element in Firefox?

Posted on 2008-10-24
2
2,403 Views
Last Modified: 2013-12-08
Hi all,

The script below works as expected in IE6 and IE7.  When I try it in FF3, it returns a NaN where IE returns an actual value.  For testing purposes, this script just doubles the selected value in the list and outputs it to a span element.

I've even included an isNaN() test, but it's still not working.

Can anyone make this work in both IE and FF?

Any help much appreciated.

Thank you,

Paul.
<html>

<head>

<script>

function updateprice(labelParam, selectParam, spanParam) { // output area, number selected, item value

// query DOM set for specific elements by ID

var label = document.getElementById(labelParam);

var name = document.getElementById(selectParam).value;

var spanval = parseInt(document.getElementById(spanParam).value);

if (isNaN(name)) { 

	name = "0"; 

	name = parseInt(name); 

	alert("name problem. val: " + name);

}

if (isNaN(spanval)) { 

	spanVal = "0"; 

	spanVal = parseInt(spanVal); 

	alert("spanval problem. val: " + spanVal);

}

var total = parseInt(name)*parseInt(spanval);

msg = "Result: " + total;

label.innerHTML= msg;

}
 
 

</script>
 

<title>Doubler</title>

</head>
 

<body>

<form>

  <p>Doubler:

    <select name="select1" id="select1" onchange="updateprice('output1','select1','item1');">

      <option value="0">0</option>

      <option value="1">1</option>

      <option value="2">2</option>

      <option value="3">3</option>

    </select>

  </p>

</form>
 

<span id="item1" name="item1" value="2"></span><br>

<span id="output1" name="output1"></span><br>

</body>

</html>

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Comment
Question by:paulc2000
2 Comments
 
LVL 82

Accepted Solution

by:
hielo earned 500 total points
ID: 22797598
var spanval = parseInt(document.getElementById(spanParam).getAttribute("value"));
0
 

Author Comment

by:paulc2000
ID: 22797646
Short and sweet!  It worked, thank you very much!
0

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