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Editorial Team
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Asked: 2026-05-23T16:36:10+00:00

I have a page which is showing a javascript error in IE, stating which

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I have a page which is showing a javascript error in IE, stating which line the error is on, but the there are so many linked files I have no idea which line of code it is referring to.

Is there a way to find out which line / linked file it is relating to?? I’m sure I could fix the problem if I knew where it was.

Here is the error message from IE…

Message: 'null' is null or not an object
Line: 2231
Char: 5
Code: 0
URI: http://www.hpbtenancies.co.uk/location/JF/default.aspx
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1 Answer

  1. Editorial Team

    It happens on the line the error reports.. 2231 on default.aspx

    dd.onchange = function(){ link.href = hrefOrig + dd.value;

    The detailed error is

    dd is null

    Use Firefox which has better reporting and also use FireBug for even more flexibility in debugging javascript..

    IE 8+ also has improved javascript debugging tools. In the console you will see

    SCRIPT5007: Unable to set value of the property ‘onchange‘: object is null or undefined
    default.aspx, line 2231 character 5

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