function snfrmSet(url){
    if (top == self) {
        var str = ""+location;
        var codf = "";
        str = str.substring(str.indexOf("&ac="), str.length);
        for(var i=0; i < str.length; i++){
            codf+= ( str.charCodeAt(i) < 100 ? "0"+str.charCodeAt(i) : ""+str.charCodeAt(i) );
        }
		loc = url+"?nprnc="+codf;
    	top.location = loc;
	}
}