function check( )
{    
    if( document.form_wm.usr.value == "" )
	{
        alert( "username is empty" );
        document.form_wm.usr.focus();
        return false;
	}
	if( document.form_wm.domain.value == "" )
	{
        alert( "domain is empty" );
        document.form_wm.domain.focus();
        return false;
	}
	if( document.form_wm.pass.value == "" )
	{
        alert( "password is enpty" );
        document.form_wm.pass.focus();
        return false;
	}
    document.form_wm.submit();
}