function Username(){
	
		if (document.frmLogin.txtUsername.value == 'username'){
			document.frmLogin.txtUsername.value='';
		}	
	}
	
	function Password(){
		
		if (document.frmLogin.txtPassword.value == 'password'){
			document.frmLogin.txtPassword.value='';
		}	
	}
	
	function Username2(){
		
		if (document.frmLogin.txtUsername.value == ''){
			 document.frmLogin.txtUsername.value='username';
		}	 
	}
	
	function Password2(){
		
		if (document.frmLogin.txtPassword.value == ''){
			 document.frmLogin.txtPassword.value='password';
		}	 
	}
	
	function ValidateLogin(){
		
		if (document.frmLogin.txtUsername.value == 'username'){
			alert('Please enter a valid username');
			document.frmLogin.txtUsername.focus();
			return false;
			}
		
		if (document.frmLogin.txtPassword.value == 'password'){
			alert('Please enter a valid password');
			document.frmLogin.txtPassword.focus();
			return false;
			}
			
		document.frmLogin.submit();
	}