function submitform()
{
	var user = document.frmSignin.username.value;	
	var pass = document.frmSignin.password.value;	
	if(user == "" || user == null)
	{
		alert("Please enter user name");	
		document.frmSignin.username.focus();	
		return;	
	}
	else if(pass == "" || pass == null)
	{
		alert("Please enter password");		
		document.frmSignin.password.focus();	
		return;
	}
	else
		document.frmSignin.submit();
		
	document.frmSignin.username.value ="" ;	
	document.frmSignin.password.value = "";	
		
}