function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function LoadPage(page,usediv) {
	// Set up request varible
	try {xmlhttp = window.XMLHttpRequest?new XMLHttpRequest(): new ActiveXObject("Microsoft.XMLHTTP");}  catch (e) { alert("Error: Could not load page.");}
	//Show page is loading
	//document.getElementById(usediv).innerHTML = 'Loading Page...';
	//scroll to top
	scroll(0,0);
	//send data
	xmlhttp.onreadystatechange = function(){
		//Check page is completed and there were no problems.
		if ((xmlhttp.readyState == 4) && (xmlhttp.status == 200)) {
			//Write data returned to page
			document.getElementById(usediv).innerHTML = xmlhttp.responseText;
		}
	}
	xmlhttp.open("GET", page);
	xmlhttp.send(null);
	//Stop any link loading normaly
	return false;
}

function initCells() {
	e = document.getElementById('menu_item').getElementsByTagName('a');
	for (var i=0; i<e.length; i++) {
		e[i].onmousedown = function() { highlight(this); return false; }
	}
}

function highlight(obj) {
	e = document.getElementById('menu_item').getElementsByTagName('a');
	for (var i=0; i<e.length; i++) {
		e[i].className='';
	}
	
	obj.className = 'highlighted';
}