function check(form){
 /*if(form.Qty.value==""){
		alert("Please enter a quantity");
		form.Qty.focus();
		return false;
	}	
	else*/ if(isNaN(eval("form.Qty.value"))){
		alert("You must've typed some letters. \r Please check quantity again.");
		form.Qty.focus();
		return false;
	}
	

	
	return true;

}