function getURLvar() {
	var url     = location.href;
	var urlVars = url.split("?");
	var v       = new Array();
	v["name"]   = new Array();
	v["val"]    = new Array();
	if (urlVars.length>1) {
		urlParams = urlVars[1];
		var vars = urlParams.split("&");
		for (var i=0; i<vars.length; i++) {
			v["name"][i] = vars[i].split("=")[0];
			v["val"][i]  = vars[i].split("=")[1];
		}
	}
	return(v);
}

function getParam(alpha) {
	var cRet;
	for (var i=0; i<tabParams["name"].length; i++) {
		if (tabParams["name"][i] == alpha) {
			cRet = tabParams["val"][i];
		}
	}
	return cRet;
}

urlParams = "";
tabParams = getURLvar();