qTranslate WordPress Plugin Custom Language Switch

lang_switch.html

<div class="language_switch" tabindex="0">
  <span class="current" data-value="en">EN</span>
	<ul class="list">
		<li data-value="en" class="option selected">EN</li>
		<li data-value="fr" class="option">FR</li>
		<li data-value="de" class="option">DE</li>
	</ul>
</div>


<script>
	jQuery('.language_switch li').click(function(){
		var date = new Date();
		date.setTime(date.getTime() + ( 30 * 24 * 60 * 60 * 1000));
		var expires = date.toUTCString();
		var lang = jQuery(this).data('value');
		var url_host = window.location.host;
		var url_path = window.location.pathname;
		var path_arr = url_path.split( '/' );
		if(path_arr[1].length == 2){
			path_arr = jQuery.grep(path_arr, function(value) {
				return value.length != 2;
			});
			url_path = path_arr.join("/");
			var new_url = 'http://' + url_host + "/" + lang + url_path;
			document.cookie = "qtrans_front_language=" + lang + "; expires= " + expires + "; path=/;";
			if(document.cookie.indexOf('qtrans_front_language=' + lang ) != -1){
				window.location.href = new_url;
			}
		}else{
			url_path = path_arr.join("/");
			var new_url = 'http://' + url_host + "/" + lang + url_path;
			document.cookie = "qtrans_front_language=" + lang + "; expires= " + expires + "; path=/;";
			if(document.cookie.indexOf('qtrans_front_language=' + lang ) != -1){
				window.location.href = new_url;
			}
		}
	})
</script>