// JavaScript Document
	function valfrm(){					
		if(document.form1.username.value==""){
			alert("Please enter username");
			document.form1.username.focus();
			return false;
		}
		if(document.form1.password.value==""){
			alert("Please enter password");
			document.form1.password.focus();
			return false;			
		}
		if(document.form1.username.value=="pwa" && document.form1.password.value=="pwapassword"){
			return true;
		}else{
			alert("your username or password is invalid");
			document.form1.username.select();
			return false;			
		}
	}