function check_valempty(obj)
{   
	var flag = true;
	arr=new Array(0,1);
	for(var i=0;i<arr.length;i++)
	{
    if(obj.elements[arr[i]].value=="")
		{
	alert(obj.elements[arr[i]].name+" must be filled");
	obj.elements[arr[i]].focus();
	flag = false;
	break;
		}
	}
	return flag;

}