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];}
}

//Opens a popup window
//url: url to open
//name: name of the popup
//width: Width of the popupwindow
//height: height of the popupwindow
//winParams: Parameters for popup (e.g. toolbar=no,status=no,menubar=yes,scrollbars=yes,resizable=yes,directories=no,location=no) excluding width, height, left and top
// 
//If the screen is big enough, the popup will launch in a window centered on the screen. If the screen is not big enough the popup will launch fullscreen (this only works for Intranet or Trusted Sites)
function popupLaunch( url, name, width, height, winParams )
{
	document.location = url;
//	document.location = "preview/learning.htm";

//	if ( width >= screen.width - 50 )
//	{
//		popupWindow = window.open( url, name, 'fullscreen,menubar=no,location=no,status=no,resizable=yes,scrollbars=no' );
//		popupWindow.focus();
//	}	
//	else
//	{       
//		allParams = winParams;
//		if ( allParams != "" ) { allParams += "," }
//
//		//popupWindow = window.open( url, name, 'fullscreen,menubar=no,location=no,status=no,resizable=yes,scrollbars=no' );
//	   	popupWindow = window.open( url, name, allParams + 'height='+height+',width='+width+',left=' + (screen.width - width ) / 2+',top=' + ( screen.height - height ) / 2 );
//	popupWindow.focus();
//	}
}