// JavaScript Document
function taalwissel(taal) {
	var currURL = '';
	currURL = window.location.href;
	var currTaal = '';
	currTaal=getUrlVal();
	if (currTaal != '') {
		currURL = currURL.replace("lang="+currTaal,"lang="+taal);
		document.location.href = currURL;
	}
	else {
		if (currURL.search("index") == -1) {
			document.location.href = currURL + '?lang='+taal
		}
		else {
			var currURL2;
			currURL2 = currURL.replace("?","###");
			if (currURL2.search("###") == -1) {
				document.location.href = currURL + '?lang='+taal
			}
			else {
				document.location.href = currURL + '&lang='+taal
			}
		}
	}
}

function getUrlVal(){           
	var varAssigned = 'lang';
	var varName = varAssigned.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
	var regexS = "[\\?&]"+varName+"=([^&#]*)";
	var regex = new RegExp( regexS );
	var valuePass = '';
	if (regex.exec( window.location.href ) != null) {
		valuePass = regex.exec( window.location.href )[1];   
	}
	return valuePass;
}