// new prototype defintion
document.include = function (url) {
 if ('undefined' == typeof(url)) return false;
 var p,rnd;
 if (document.all){
   // For IE, create an ActiveX Object instance
   p = new ActiveXObject("Microsoft.XMLHTTP");
 }
 else {
   // For mozilla, create an instance of XMLHttpRequest.
   p = new XMLHttpRequest();
 }
 // Prevent browsers from caching the included page
 // by appending a random  number
 rnd = Math.random().toString().substring(2);
 url = url.indexOf('?')>-1 ? url+'&rnd='+rnd : url+'?rnd='+rnd;
 // Open the url and write out the response
 p.open("GET",url,false);
 p.send(null);
 document.write( p.responseText );
}

function setActiveMenu(elm) {
	$('navtop'+elm).addClassName('active');
}

function hideText(elm) {
	var elements = document.getElementsByClassName("textClm");
	for(var i=0; i<elements.length; i++) {
		if(elements[i].id != 'item_1_content') {
			elements[i].style.display = 'none';
		}
	};
}

function switchContent(elm) {
	var elements = document.getElementsByClassName("textClm");
	for(var i=0; i<elements.length; i++) {
		new Effect.Fade(elements[i].id, {duration: 0.1});
		//elements[i].style.display = 'none';
	}
	
	var elements = document.getElementsByClassName("leftnav");
	for(var i=0; i<elements.length; i++) {
		elements[i].removeClassName('active');
	}
	
	$('leftnav'+elm).addClassName('active');
	setTimeout("Effect.Appear('item_"+elm+"_content', {duration: 0.2})", 400);
	//$('item_'+elm+'_content').style.display = 'block';
}