// Get parameters from URL
function getURLParam(strParamName) {
	var strReturn = "";
	var strHref = window.location.href;
	if ( strHref.indexOf("?") > -1 ) {
		var strQueryString = strHref.substr(strHref.indexOf("?")).toLowerCase();
		var aQueryString = strQueryString.split("&");
		for ( var iParam = 0; iParam < aQueryString.length; iParam++ ) {
		  if (
			aQueryString[iParam].indexOf(strParamName + "=") > -1 ) {
			var aParam = aQueryString[iParam].split("=");
			strReturn = aParam[1];
			break;
		  }
		}
	}
	return strReturn;
}



// Mouse Over Swap Image Listener
var W3CDOM = (document.createElement && document.getElementsByTagName);

var mouseOvers = new Array();
var mouseOuts = new Array();

//window.onload = omo;

function omo(id) {
	if (!W3CDOM) return;
	var nav = document.getElementById(id);
	var imgs = nav.getElementsByTagName('img');
	for (var i=0;i<imgs.length;i++)
	{
		imgs[i].onmouseover = mouseGoesOver;
		imgs[i].onmouseout = mouseGoesOut;
		var suffix = imgs[i].src.substring(imgs[i].src.lastIndexOf('.'));
		mouseOuts[i] = new Image();
		mouseOuts[i].src = imgs[i].src;
		mouseOvers[i] = new Image();
		mouseOvers[i].src = imgs[i].src.substring(0,imgs[i].src.lastIndexOf('.')) + "_omo" + suffix;
		imgs[i].number = i;
	}
}

function mouseGoesOver() {
	this.src = mouseOvers[this.number].src;
}

function mouseGoesOut() {
	this.src = mouseOuts[this.number].src;
}