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JS: document.getElementById(var).style.display - Object needed error in IE8 only

Posted on 2010-08-21
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Last Modified: 2012-06-27
I'm iterating through an array of strings (ids) and passing each element of the array to a function which either hides that element by id or shows it.

 
for(var tag = 0; tag < idtagArray.length; tag++){UpdateImage( idtagArray[tag], xmlhttp.responseText);}


    function UpdateImage( usediv, data )
    {
        if( data == null || data.length <= 0 ) {
            update_value.innerText = 0;
            return;
        }
     // [A5:1][A6:1][A7:1][A8:1]
        var start       = data.indexOf( "[" + usediv + ":" ) + 2 + usediv.length ;
        var end         = data.indexOf( "]", start );
        var data_value  = data.slice( start , end ) ;
     
     if( data_value > 0 )
     {
      document.getElementById(usediv).style.display = "";
     }
     else
     {
      document.getElementById(String(usediv)).style.display = "none";
     }
    }

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The error is with getElementById - Object Needed. This only occurs on IE8; Mozilla and Chrome are fine. I even tried casting the parameter into a string with no success.
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Question by:Chipkin_com
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3 Comments
 
LVL 38

Expert Comment

by:Tom Beck
ID: 33493930
Can you provide an example of the values of 'usediv' and 'data' as passed to UpdateImage?
0
 

Author Comment

by:Chipkin_com
ID: 33494145
Yes, here is how i call the method:
var idtagArray = ["KT501-1_8","KT502-15_30","KT503-15_37","KT504-10_30","KT505-30_80","KT506-30_90","KT507-20_50","KT510-15_1440","KT512-0_1_2_3_4","KT513-30_80","KT514-0_1","KT520-0_1","KT525-0_1_2","KT526-0_1","KT527-0_9999","KT529-0_9999","KT531-0_9999","KT533-0_9999","KT535-0_250","KT536-0_9999","KT538-0_9999","KT548-0_1","KT549-0_1","KT550-102_120",
"KT551-80_98","KT552-15_37","KT553-0_30","KT554-50_90","KT555-20_50","KT565-0_10","KT566-0_20","KT567-0_30","KT568-0_50","KT569-1_10","KT570-1_10","KT571-2_10","KT572-2_10","KT573-1_20","KT574-1_30"];
for(var tag = 0; tag < idtagArray.length; tag++){UpdateImage( idtagArray[tag], xmlhttp.responseText);

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Accepted Solution

by:
Chipkin_com earned 0 total points
ID: 33494319
Figured out my problem. Not all ids in the array were present on my page. Thank you.
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