var OpenDivID;

function showCompletedModules(pstrID){
	if ( OpenDivID==pstrID ) {
		// close the list if the user clicks a second time
		hideCompletedModules(pstrID);
	} else {
		if ( OpenDivID ) {
			hideCompletedModules(OpenDivID);
		}
		myDiv = document.getElementById('div_'+pstrID);
		myDiv.style.display = 'block';
		OpenDivID = pstrID;
	}	
}

function NewWindow(mypage,myname,w,h,scroll){
  var winl = (screen.width-w)/2;
  var wint = (screen.height-h)/2;
  var settings  ='height='+h+',';
      settings +='width='+w+',';
      settings +='top='+wint+',';
      settings +='left='+winl+',';
      settings +='scrollbars='+scroll+',';
      settings +='resizable=yes';
  win=window.open(mypage,myname,settings);
  if(parseInt(navigator.appVersion) >= 4){win.window.focus();}
}


function hideCompletedModules(pstrID){
	document.getElementById('div_'+pstrID).style.display = 'none';
	OpenDivID = 0;
}

function ActivateChoice(pstrHID) {
	var ButtonTop = document.getElementById('btntop_'+pstrHID);
	var ButtonBtm = document.getElementById('btnbtm_'+pstrHID);
	ButtonTop.src="../images/btntopon.gif";
	ButtonBtm.src="../images/btnbottomon.gif";
}

function DeActivateChoice(pstrHID) {
	var ButtonTop = document.getElementById('btntop_'+pstrHID);
	var ButtonBtm = document.getElementById('btnbtm_'+pstrHID);
	ButtonTop.src="../images/btntopoff.gif";
	ButtonBtm.src="../images/btnbottomoff.gif";
}


function showCourseOverview (pstrID,w,h) {
	var myDiv  = document.getElementById(pstrID);
	// Set x and y position
	var winW = 630, winH = 460;
	
	if (parseInt(navigator.appVersion)>3) {
	 if (navigator.appName=="Netscape") {
	  winW = window.innerWidth;
	  winH = window.innerHeight;
	 }
	 if (navigator.appName.indexOf("Microsoft")!=-1) {
	  winW = document.body.offsetWidth;
	  winH = document.body.offsetHeight;
	 }
	}						 
	myDiv.style.left    = (winW - w)/2 + "px";
	myDiv.style.top     = (winH - h)/2 + "px";
	myDiv.style.width   = w+"px";
	myDiv.style.height  = h+"px";
	myDiv.style.display = 'block';
}

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_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_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];}
}