var ie4 = (document.all) ? true : false;
		var ns4 = (document.layers) ? true : false;
		var ns6 = (document.getElementById && !document.all) ? true : false;
		var aktief = "login";

		function changeLayer(lay) {
		if (ie4) {
			document.all[aktief].style.visibility = "hidden";
			document.all[aktief].style.display = "none";
			document.all[lay].style.visibility = "visible";
			document.all[lay].style.display = "block";
			}
		if (ns4) {
			document.layers[aktief].visibility = "hide";
			document.layers[lay].visibility = "show";
			}
		if (ns6) {
			document.getElementById([aktief]).style.visibility = "hidden";
			document.getElementById([aktief]).style.display = "none";
			document.getElementById([lay]).style.visibility = "visible";
			document.getElementById([lay]).style.display = "block";
			// visible zelf toegevoegd
			}
		
		aktief = (lay);
		}

		var nowactive = "page1";
		function changeTestemonials(page) {
		if (ie4) {
			document.all[nowactive].style.visibility = "hidden";
			document.all[nowactive].style.display = "none";
			document.all[page].style.visibility = "visible";
			document.all[page].style.display = "block";
			}
		if (ns4) {
			document.layers[nowactive].visibility = "hide";
			document.layers[page].visibility = "show";
			}
		if (ns6) {
			document.getElementById([nowactive]).style.visibility = "hidden";
			document.getElementById([nowactive]).style.display = "none";
			document.getElementById([page]).style.visibility = "visible";
			document.getElementById([page]).style.display = "block";
			
			// visible zelf toegevoegd
			}
		
		nowactive = (page);
		}

		
		// script to change color if selected fieldholder	
		active=0;
		inactive=0;
		function activate(id) {
			
			inactive=active;
			active=id;
			
			document.getElementById(id).style.background="#D5E2F5";
			if (inactive != 0) {
				document.getElementById(inactive).style.background="#EBEBEB";
			}
		}
		

		// script to control maxlength for textarea's
		function imposeMaxLength(Object, MaxLen)
		{
			return (Object.value.length <= MaxLen);
		}
		
		
		// send sms prompter 
		
		function prompter() {
		var reply = prompt("Naar welk emailadres wilt u dit bericht sturen?", "")
		var changer = document.getElementById('emailto');
		changer.value = reply;
		
		if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(changer.value)){
		return (true)
		}
		alert("Invalid E-mail Address! Please re-enter.")
		prompter();
		return (false)
		}
		
		// clipboard copier
		function copyToClipboard(field)
		{
			var content = eval("document."+field);
			content.focus();
			content.select();
			range = content.createTextRange();
			range.execCommand("Copy");
			window.status="Contents copied to clipboard";
			setTimeout("window.status=''",1800);
			alert('Tekst is gekopieerd naar clipboard!');
		}

		function SetAllCheckBoxes(FormName, FieldName, CheckValue)
		{
			if(!document.forms[FormName])
				return;
			var objCheckBoxes = document.forms[FormName].elements[FieldName];
			if(!objCheckBoxes)
				return;
			var countCheckBoxes = objCheckBoxes.length;
			if(!countCheckBoxes)
				objCheckBoxes.checked = CheckValue;
			else
				// set the check value for all check boxes
				for(var i = 0; i < countCheckBoxes; i++)
					objCheckBoxes[i].checked = CheckValue;
		}


		function InversCheckBoxes(FormName, FieldName)
		{
		
			temp = document.forms[FormName].elements[FieldName].length ;
			for (i=0; i < temp; i++){
				if(document.forms[FormName].elements[FieldName][i].checked == 1){document.forms[FormName].elements[FieldName][i].checked = 0;}
				else {document.forms[FormName].elements[FieldName][i].checked = 1}
			}
		}