function validateForm() {
	var selts = document.getElementsByTagName("select");
    for (var i=0; i < selts.length; i++){
        if(selts[i].className == "required"){
            if(selts[i].selectedIndex < 1)
                { 
					var selname = selts[i].name;
					selname = selname.replace(/(<([^>]+)>)/ig,"");
                    alert(selname + " is a required field");
                    return false;
                }
            }
        }
    return true;
}
validateForm();