function EMail(s) {
 var a = false;
 var res = false;
 if(typeof(RegExp) == 'function') {
 	var b = new RegExp('abc');
 	if(b.test('abc') == true) {
 		a = true;
 	} // if
 } // if
 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.lastendexOf('.') > s.search('@') &&
 	s.lastendexOf('.') >= s.length-5)
 } // if-lese
 return(res);
} // function


function setErrorMessages(lang) {
    
    if (lang == "de") {
	    var errorMessage = unescape("Bitte ausf%FCllen");
	    var errorMessageEmail = unescape("Keine g%FCltige e-Mail Adresse");
    } 
    if (lang == "en") {
        var errorMessage = unescape("Please fill in");
        var errorMessageEmail = unescape("No valid e-Mail Address");
    }
    if (lang == "fr") {
        var errorMessage = unescape("Complétez la case");
        var errorMessageEmail = unescape("L'e-Mail adresse n'est pas correct");
    }
    
    var errorMessages = new Array(errorMessage, errorMessageEmail);
    return errorMessages;
    
}

/**
* clearInput
* just clears the input field
**/
function clearInput(id) {
    
    var errorMessages = setErrorMessages('de');
    
	if ($(id).getValue() == errorMessages[0] || $(id).getValue() == errorMessages[1]) {
		$(id).setValue('');
		$(id).removeClassName('input_error');
	} 
} // function

function validateForm(form, email) {
	
	var errorMessages = setErrorMessages('de');
	var error = false;
	if (email) {
		var emailFields = new Array("email");
		for(i=0; i<=emailFields.length-1; i++) {
			if($(emailFields[i]).getValue() == "" || $(emailFields[i]).getValue() == errorMessages[1] || EMail($(emailFields[i]).getValue()) == false) {
				error = true;
				$(emailFields[i]).addClassName('input_error').setValue(errorMessages[1]);
			} else {
				$(emailFields[i]).removeClassName('input_error');	
			} // if-else	
		}
	}

	if (form == "anfrageForm") {
		var fields = new Array("vorname", "nachname", "anrede", "anfrage");
	}
		
	for(i=0; i<=fields.length-1; i++) {
		if($(fields[i]).getValue() == "" || $(fields[i]).getValue() == -1 || $(fields[i]).getValue() == errorMessages[0]) {
			error = true;
			$(fields[i]).addClassName('input_error').setValue(errorMessages[0]);
		} else {
			$(fields[i]).removeClassName('input_error');
		} // if-else
	} // for
					
	if (error) {
		return false;	
	} else {
		return true;	
	}
			
} // function