/***********************************************
* Email Validation script- © Dynamic Drive (www.dynamicdrive.com)
* This notice must stay intact for legal use.
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/
 
var emailfilter=/^\w+[\+\.\w-]*@([\w-]+\.)*\w+[\w-]*\.([a-z]{2,4}|\d+)$/i
 
function checkmail(e){
var returnval=emailfilter.test(e.value)
if (returnval==false){
alert("Bitte geben Sie eine gültige E-Mail Adresse an.")
e.select()
}
return returnval
}
 
function ShowHide(id) {
    obj = document.getElementsByTagName("div");
    if (obj[id].style.display == 'block'){
    obj[id].style.display = 'none';
    }
    else {
    obj[id].style.display= 'block';
    }
}

/***********************************************
* Required field(s) validation v1.10- By NavSurf
* Visit Nav Surf at http://navsurf.com
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/
 
function formCheck (formobj){
	// Enter name of mandatory fields
	var fieldRequired = Array("telefon","nachricht","name");
	// Enter field description to appear in the dialog box
	var fieldDescription = Array("Telefon","Nachricht","Name");
	// dialog message
	var alertMsg = "Es sind nicht alle Pflichtfelder (*) ausgefüllt. Bitte füllen Sie folgende Felder aus:\n";
 
	var l_Msg = alertMsg.length;
 
	for (var i = 0; i < fieldRequired.length; i++){
		var obj = formobj.elements[fieldRequired[i]];
		if (obj){
			switch(obj.type){
			case "select-one":
				if (obj.selectedIndex == -1 || obj.options[obj.selectedIndex].text == "Nachname"){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
				break;
			case "select-multiple":
				if (obj.selectedIndex == -1){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
				break;
			case "text":
			case "textarea":
				if (obj.value == "" || obj.value == null){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
				break;
			default:
			}
			if (obj.type == undefined){
				var blnchecked = false;
				for (var j = 0; j < obj.length; j++){
					if (obj[j].checked){
						blnchecked = true;
					}
				}
				if (!blnchecked){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
			}
		}
	}
 
	if (alertMsg.length == l_Msg){
		return true;
	}else{
		alert(alertMsg);
		return false;
	}
}