// JavaScript Document
function swapImg(obj) {
var srcArray = obj.src.split("nav_");
var srcFileArray = srcArray[1].split(".");
if(srcArray[1].indexOf("over") ==-1) {
obj.src = "images/nav_" + srcFileArray[0] + "_over.gif";
}
else {
var srcFileArrayOver = srcFileArray[0].split("_");
obj.src = "images/nav_" + srcFileArrayOver[0] + ".gif";
}
}
//Test if Browser is IE7 and load specific styles
function getIEVersionNumber() {
	var ua = navigator.userAgent;
	var MSIEOffset = ua.indexOf("MSIE");
	if (MSIEOffset == -1) {
		return 0;	
	} else {
		return parseFloat(ua.substring(MSIEOffset + 5, ua.indexOf(";", MSIEOffset)));	
	} 
}