// Formularfelder überprüfen
function chkMail() {
	var chkOK = true;
	var chkMail = true;
	var chkEmpty = true;
	var msg = "";

	$$(".chkEmpty").each( function(item){
		if($F(item)=="") {
			chkOK = false;
			chkEmpty = false;
			item.setStyle({backgroundColor: '#c0d9c0'});
		} else {
			item.setStyle({backgroundColor: '#FFFFFF'});
		}
	} );

	$$(".chkEmail").each( function(item){
                var reg = new RegExp('^([a-zA-Z0-9\\-\\.\\_]+)'+'(\\@)([a-zA-Z0-9\\-\\.]+)'+'(\\.)([a-zA-Z]{2,4})$');
                
		if(!reg.test($F(item)))	{
		//if($F(item)=="") {
			chkOK = false;
			chkMail = false;
			item.setStyle({backgroundColor: '#c0d9c0'});
		} else {
			item.setStyle({backgroundColor: '#FFFFFF'});
		}
	} );

	if(!chkEmpty) msg += "Bitte füllen Sie die farbig hinterlegten Felder aus!\n";
	if(!chkMail) msg += "Bitte tragen Sie eine korrekte E-Mail-Adresse ein!\n";
	if(msg!="") alert(msg);
	return chkOK;
}

function mouseRollOver()
{
	$$('.rollOver').each(function (i)
	{
		i.observe('mouseover', function (e)
		{
			index = i.src.lastIndexOf('.');
			if (index > -1) {i.src = i.src.substring(0, index)+'.mo'+i.src.substring(index);}
		})

		i.observe('mouseout', function (e)
		{
			i.src = i.src.replace('.mo.', '.');
		})
	});
}