Javascript function variables being validated before function called by Internet Explorer
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Published on 2010-05-30T03:37:17Z
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2010/05/30
3:42 UTC
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When my page loads it calls the function like below:
<body onLoad='changeTDNodes()'>
And the code it calls is below:
function applyThresholds(myvalue, mycell) {
var threshold = 10;
if (myvalue.innerHTML >= threshold)
{
//mycell.style.setAttribute('cssText','font-size:x-large;');
mycell.setAttribute('bgColor','red');
}
else
{
mycell.setAttribute('bgColor','green');
}
}
function changeTDNodes() {
// there can be many 'td' elements; just return the nth element
var RepairVideo_cell_value = document.getElementsByTagName('B')[21];
var RepairVideo_cell = document.getElementsByTagName('td')[16];
var PPV_cell_value = document.getElementsByTagName('B')[6];
var PPV_cell = document.getElementsByTagName('td')[1];
var LeadRepair_cell_value = document.getElementsByTagName('B')[11];
var LeadRepair_cell = document.getElementsByTagName('td')[6];
var LeadTier_cell_value = document.getElementsByTagName('B')[16];
var LeadTier_cell = document.getElementsByTagName('td')[11];
var CHSI_cell_value = document.getElementsByTagName('B')[26];
var CHSI_cell = document.getElementsByTagName('td')[21];
var HN_cell_value = document.getElementsByTagName('B')[31];
var HN_cell = document.getElementsByTagName('td')[26];
var CDV_cell_value = document.getElementsByTagName('B')[36];
var CDV_cell = document.getElementsByTagName('td')[31];
var CommOps_cell_value = document.getElementsByTagName('B')[42];
var CommOps_cell = document.getElementsByTagName('td')[36];
applyThresholds(PPV_cell_value, PPV_cell);
applyThresholds(LeadRepair_cell_value, LeadRepair_cell);
applyThresholds(LeadTier_cell_value, LeadTier_cell);
applyThresholds(RepairVideo_cell_value, RepairVideo_cell);
applyThresholds(CHSI_cell_value, CHSI_cell);
applyThresholds(HN_cell_value, HN_cell);
applyThresholds(CDV_cell_value, CDV_cell);
applyThresholds(CommOps_cell_value, CommOps_cell);
}
Although the code executes succssfully, in the bottom corner of internet explorer the error shows as:
Line: 12 Char: 1 Error: 'innerHTML' is null or not an object Code: 0
Yet if I move the applyThresholds function below the changeTDNodes function, the changeTDNodes functions complains that there is no such thing as the applyThresholds function.
What am I doing wrong here?
Thanks for all your help!
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