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 MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function openWindow(url, name, width, height, features)
{
	if (width)
	{
		width = Math.min(width, screen.availWidth);
		features += ",width=" + width;
		features += ",left=" + ((screen.availWidth - width) / 2);
	}

	if (height)
	{
		height = Math.min(height, screen.availHeight);
		features += ",height=" + height;
		features += ",top=" + ((screen.availHeight - height) / 2);
	}

	var newWindow = window.open(url, name, features);
	
	window.attachEvent("onfocus",
		function()
		{
			newWindow.close();
		}
	);
}

 function popupcourse(coursepage){   // pop up course in a centered 800x600 window with all features turned off

    var ie = false; // Internet Explorer flag
    var nn = false; // Netscape flag
    var appVersion; // browser version
    var userAgent; 
     var four_up=false; // used to check for version 4 or higher of the browser
     if (navigator.appName.substring(0.8) == "Netscape"){
        nn = true;
        }
    else if (navigator.appName.substring(0.8) == "Microsoft"){
      ie = true;
      }

     var popupwidth = ((nn) ? 782 : 790);
     var popupheight = ((nn) ? 542 : 543);

window.open(coursepage,'coursedemo','scrolling=no,width=' + popupwidth + ',height=' + popupheight + ',left=' + ((screen.width/2)-400) + ',top=' + ((screen.availHeight/2)-286) + ',screenX=' + ((screen.width/2)-400) + ',screenY=' + ((screen.availHeight/2)-286));


}