function showImgInGallery(callerID, targetId, imgUrl){
	$j('.selected').removeClass("selected");
	$j('#' + callerID).addClass("selected");
	$j('#' + targetId).attr("src",imgUrl).fadeIn("slow");
}

function checkForm(formName){
	if(formName == "postRingtoneForm"){ //Formular für Klingelton

		document.getElementById('ringTonePhonePrefixMsg').style.display = "none";
		document.getElementById('ringTonePhoneNumberMsg').style.display = "none";

		var error = false;
		var len1 = document.getElementById("ringTonePhonePrefix").value;
		var len2 = document.getElementById("ringTonePhoneNumber").value;
		
		if(len1.length != 3){
			//alert("Vorwahl muss aus 3 Nummern bestehen");
			document.getElementById('ringTonePhonePrefixMsg').style.display = "block";
			error = true;	
		}

		if(len2.length < 5 || len2.length > 12){
			//alert("Telefonnummer muss aus 5 bis 12 Nummern bestehen");
			document.getElementById('ringTonePhoneNumberMsg').style.display = "block";
			error = true;	
		}
		
		if(error){
			return false;
		} else {
			document.getElementById("postRingtoneForm").submit();
			return true;
		}
			
	}
}