function chk_me(frm){
	for (var i = 0; i < frm.elements.length; i++) {
		if (frm.elements[i].type == "text" || frm.elements[i].type == "textarea" || frm.elements[i].type == "password") {
			if(frm.elements[i].value==""){
				alert("field may not be empty");
				frm.elements[i].focus();
				return false;
			}
			// chk email 
			if(frm.elements[i].id=="email_id"){
				var strV=frm.elements[i].value
				var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
				if (!filter.test(strV))
				{
					alert("Please input a valid email address!")
					frm.elements[i].focus();
					return false;
				}
					
			}

		}//end of if
	}//end of for loop
}//end of function