function over(img,number){
	linkitem = "linkitem" + number;
	img = "img/navi_" + img + "_h.gif";
	document.getElementById(linkitem).src = img;
}

function out(img,number){
	linkitem = "linkitem" + number;
	img = "img/navi_" + img + ".gif";
	document.getElementById(linkitem).src = img;
}

function toggle(link,divId){
	var lText=link.innerHTML;
	var d=document.getElementById(divId);
	if(lText=='..mehr'){
	link.innerHTML='..schliessen';
	d.style.display='block';
	}
	else{
	link.innerHTML='..mehr';
	d.style.display='none';
	}
}

function swap(img){
	linkitem = "item";
	img = "templates/tpl/de/img/" + img + ".gif";
	document.getElementById(linkitem).src = img;
}

function forward(id, nr, anz){
	var id;
	var nr = parseInt(nr);
	var anz = parseInt(anz);
	nr = nr+1;
	if(nr == anz+1){nr = 1;}
	for(i=1;i<anz+1;i++){
		if(i == nr){
			 document.getElementById(id+i).style.display='block';
			 document.getElementById('n_img'+i).style.display='block';
		}else{
			 document.getElementById(id+i).style.display='none';
 			 document.getElementById('n_img'+i).style.display='none';
		}
	}
}

function back(id, nr, anz){
	var id;
	var nr = parseInt(nr);
	var anz = parseInt(anz);
	nr = nr-1;
	if(nr == 0){nr = anz;}
	for(i=1;i<anz+1;i++){
		if(i == nr){
			 document.getElementById(id+i).style.display='block';
			 document.getElementById('n_img'+i).style.display='block';
		}else{
			 document.getElementById(id+i).style.display='none';
 			 document.getElementById('n_img'+i).style.display='none';
		}
	}
}

function showConfirm(url){
	Check = confirm("Wollen Sie diesen Eintrag wirklich löschen?");
	if (Check == false){
  	}else{
		document.location = url;
  	}
}

function checkNEmail(form) {
	if (isBlank(form.email.value) || isBlank(form.name.value) || !isEmailValid(form.email.value) ) 
	{
		alert("Please enter a valid Name and  Email Address .\nThe email or name you have typed in does not appear to be valid.");
		form.email.focus();
		return false;
	}
	}

function checkEmail(form) {
	if (isBlank(form.email.value) || !isEmailValid(form.email.value) ) {
		alert("Please enter a valid Email Address.\nThe email you have typed in does not appear to be valid.");
		form.email.focus();
		return false;
	}
return true;

}

function isBlank(fieldValue) {
	var blankSpaces = / /g;
	fieldValue = fieldValue.replace(blankSpaces, "");
	return (fieldValue == "") ? true : false;
}

function isEmailValid(fieldValue) {
	var emailFilter = /^.+@.+\..{2,4}$/;
	var atSignFound = 0;
	for (var i = 0; i <= fieldValue.length; i++)
		if ( fieldValue.charAt(i) == "@" )
			atSignFound++;
	if ( atSignFound > 1 )
		return false;
	else
		return ( emailFilter.test(fieldValue) && !doesEmailHaveInvalidChar(fieldValue) ) ? true : false;
}

function doesEmailHaveInvalidChar(fieldValue) {
	var illegalChars = /[\(\)\<\>\,\;\:\\\/\"\[\] ]/;
	return ( illegalChars.test(fieldValue) ) ? true : false;
}