function HideDiv()
{
			document.getElementById('insetmain').style.display='none' ;
			document.getElementById('insetabout').style.display='none' ;
			document.getElementById('insetarts').style.display='none' ;
			document.getElementById('insetevents').style.display='none' ;
			document.getElementById('insetlearning').style.display='none' ;
			document.getElementById('insetresources').style.display='none' ;
			document.getElementById('insetnewtocwu').style.display='none' ;
}
function UnhideDiv(thingId)
{
		var target;
		target = document.getElementById(thingId) ;
		target.style.display = "block" ;
}
function preloadImages() {
  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 ChangeBackdrop() {
  var background = new Array();
  var date = new Date();
  var node = document.getElementById('boxoutside');
  background[0] = "url(images/backdrop-1.jpg)"; //january
  background[1] = "url(images/backdrop-2.jpg)"; //february
  background[2] = "url(images/backdrop-1.jpg)"; //march
  background[3] = "url(images/backdrop-2.jpg)"; //april
  background[4] = "url(images/backdrop-1.jpg)"; //may
  background[5] = "url(images/backdrop-2.jpg)"; //june
  background[6] = "url(images/backdrop-1.jpg)"; //july
  background[7] = "url(images/backdrop-2.jpg)"; //august
  background[8] = "url(images/backdrop-1.jpg)"; //september
  background[9] = "url(images/backdrop-2.jpg)"; //october
  background[10] = "url(images/backdrop-1.jpg)"; //november
  background[11] = "url(images/backdrop-2.jpg)"; //december
  node.style.backgroundImage = background[date.getMonth()];
  }