Using Javascript to get an Element by ID

function returnObjById( id ){
// http://www.netlobo.com/javascript_get_element_id.html

if (document.getElementById)
var returnVar = document.getElementById(id);
else if (document.all)
var returnVar = document.all[id];
else if (document.layers)
var returnVar = document.layers[id];
return returnVar;
}

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