function chkLogin(){
          		var uid;
          		var pwd;
          		uid = document.login.uid;
          		pwd = document.login.pwd;

          		if (uid.value == ""){
          			alert('Please enter your USER ID');
          			uid.focus();
          			return false;
          		}else{
						if(uid.value.length < 4){
							alert('USER ID must be between 4 to 10 characters');
							uid.focus();
							return false;
						}

						var filter2  = /^([a-zA-Z0-9_\.\-])+$/;
						if (filter2.test(uid.value)){

						}else{
							alert('USER ID should contain ONLY numbers, letters or underscore');
							uid.focus();
							return false;
						}
				}

				if (pwd.value == ""){
					alert('Please enter your PASSWORD');
					pwd.focus();
					return false;
				}else{
					if(pwd.value.length < 4){
						alert('Your PASSWORD must be between 4 to 10 characters');
						pwd.focus();
						return false;
					}
				}
          	}