function IsFilled( f, n ) {
	if ( /\S/i.test( f.value ) == false ) {
		alert( n ); f.focus( ); f.select( ); return false;
	}
	return true;
}

function IsEmail( f, n ) {
	if ( /^[a-z\d][a-z\d\-\._%]*@([a-z\d][a-z\d\-]*)(\.[a-z\d][a-z\d\-]*)*$/i.test( f.value ) == false ) {
		alert( n ); f.focus( ); f.select( ); return false;
	}
	return true;
}

function IsInteger( f, n ) {
	if ( /^\+?\d{1,8}$/i.test( f.value ) == false ) {
		alert( n ); f.focus( ); f.select( ); return false;
	}
	return true;
}

function IsNumber( f, n ) {
	if ( /^\+?\d{1,8}(\.\d{1,8})?$/i.test( f.value ) == false ) {
		alert( n ); f.focus( ); f.select( ); return false;
	}
	return true;
}

function IsDate( f, n ) {
	if ( /^\d{4}\-\d{2}\-\d{2}$/i.test( f.value ) == false ) {
		alert( n ); f.focus( ); f.select( ); return false;
	}
	return true;
}

function IsDateTime( f, n ) {
	if ( /^\d{4}\-\d{2}\-\d{2} \d{2}\:\d{2}\:\d{2}$/i.test( f.value ) == false ) {
		alert( n ); f.focus( ); f.select( ); return false;
	}
	return true;
}

function IsSelected( f, n ) {
	if ( f.options.length == 0 || f.selectedIndex < 0 || f.options[ f.selectedIndex ].value == '' ) {
		alert( n ); f.focus( ); return false;
	}
	return true;
}

function IsChecked( f, n ) {
	if ( f.length ) {
		for ( var i = 0; i < f.length; i++ ) {
			if ( f[ i ].checked == true ) {
				return true;
			}
		}
		alert( n ); f[ 0 ].focus( ); return false;
	}
	else if ( f.checked == false ) {
		alert( n ); f.focus( ); return false;
	}
	return true;
}

function picturezoom( u ) {
	window.open( "pop-picturezoom.php?Picture=" + escape( u ), "picturezoom", "width=660,height=660" ).focus( );
}

function contentzoom( u ) {
	window.open( "pop-contentzoom.php?ContentID=" + escape( u ), "picturezoom", "width=660,height=660" ).focus( );
}