// NBRA custom Javascript

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];}
}

// **********************************************
// code for slideshow
/*
		//set image path
		var sPath = "/Portals/0/Graphics/Banners/";
		var aImages = ["2refs.jpg" ,"contact.jpg","faq.jpg","login.jpg","on_the_road.jpg","search_results.jpg", "survey.jpg", "team_meeting.jpg", "whats_going_on.jpg"];
		var aSource = new Array();
		
		for ( i = 0; i < aImages.length; i++ ) {
			aSource[i] = sPath + aImages[i];
		}
			
		//set duration for each image
		duration = 4;
		
		//Please do not edit below
		ads=[]; ct=0;
		function switchImg() {
			var n=(ct+1)%aSource.length;
			
			if (ads[n] && (ads[n].complete || ads[n].complete == null) && $("PhotoGalleryImage")) {
				$("PhotoGalleryImage").src = ads[ct=n].src;
			}
			
			ads[n=(ct+1)%aSource.length] = new Image;
			ads[n].src = aSource[n];
			setTimeout("switchImg()",duration*1000);
		}
		onload = function() {
		if (document.images)
			switchImg();
		}
*/
// **********************************************

function setSubBackgrounds()
{
	var subPane = $('ContentDiv');
	if( subPane && subPane.className == 'SubMiddleColumnDiv' )
	{
		setBackground(subPane);
	}
}
		
function setBackground(element)
{
	var NUM_BG_IMAGES = 4;	
	var random_num = (Math.round((Math.random()*NUM_BG_IMAGES))) + 1;
	var location = '/Portals/_default/Skins/NBRA%20-%20Internet/images';
	element.style.backgroundImage  = 'url(' + location + '/Section_BG' + random_num + '.jpg)';
}