function getURLVar(urlVarName) {
	var urlHalves = String(document.location).split('?');
	var urlVarValue = '';
	if(urlHalves[1]){
		var urlVars = urlHalves[1].split('&');
		for(i=0; i<=(urlVars.length); i++){
		if(urlVars[i]){
			var urlVarPair = urlVars[i].split('=');
			if (urlVarPair[0] && urlVarPair[0] == urlVarName) {
				urlVarValue = urlVarPair[1];
			}
		}
	}
}
return urlVarValue;   
}