/* Formular faerben ___________________________________*/

	function loschen (oThis, sDeleteThis) {

		if (oThis.value == sDeleteThis) oThis.value = '';
		
			if (oThis.className.search(/fehler/) != -1) {
				oThis.className = oThis.className.replace(/fehler/, 'aktiv');
			} else {
				oThis.className = oThis.className + ' aktiv'				
			}
			
		return false;

	}



/* Emailcheck _________________________________________*/

	function IsEmail (s) {
	
		var a = false;
	 	var res = false;
	
	 	if (typeof(RegExp) == 'function') {
		
	 		var b = new RegExp('abc');
			
			if (b.test('abc') == true) a = true;
		
		}
		
	 	if (a == true) {
		
			reg = new RegExp('^([a-zA-Z0-9\\-\\.\\_]+)(\\@)([a-zA-Z0-9\\-\\.]+)(\\.)([a-zA-Z]{2,4})$');
	  		res = (reg.test(s));
		
		} else res = (s.search('@') >= 1 && s.lastIndexOf('.') > s.search('@') && s.lastIndexOf('.') >= s.length-5)
		
		return(res);
	
	}

/* Kontrolle ob Entertaste gedrückt wurde für Submit __*/

	function IsEnter (oEvent, sFunction) {
	
		if (oEvent.keyCode == 13 && !oEvent.shiftKey) { 
			window.setTimeout(sFunction, 1);
		}
		
		return false;
	
	}