function checkrequired(which) {
	var pass=true;
	if (document.images) {
		for (i=0;i<which.length;i++) {
			var tempobj=which.elements[i];
			if (tempobj.name.substring(0,1)=="_") {
				if (((tempobj.type=="text"||tempobj.type=="textarea"||tempobj.type="password")&&
					tempobj.value=='')||(tempobj.type.toString().charAt(0)=="s"&&
					tempobj.selectedIndex==0)) {
					pass=false;
					break;
				}
			}
	  }
	}
	if (!pass) {
		shortFieldName=tempobj.name.substring(1,30).toUpperCase();
		alert("Please make sure all the required field(s) are inputed.");
		return false;
		}
	else {
		return true;
	}
}