var myurl="http://www.grenoble-rencontre.com/divinsc/";
showDiv("insc.html");

function showDiv(iframeSrc){
  var oLINK=document.createElement("link");
  oLINK.setAttribute("rel", "stylesheet"); 
  oLINK.setAttribute("type", "text/css"); 
  oLINK.setAttribute("href", myurl+"lightbox.css"); 
  document.body.appendChild(oLINK);
  
  var arrayPageSize = getPageSize();
  var iframeWidth=420;
  var iframeHeight=465;
  var lightboxLeft=(arrayPageSize[0]-iframeWidth)/2;
  var lightboxTop=50;
  if(arrayPageSize[3]<840) lightboxTop=10;
  
  var oDiv=document.createElement("DIV");
  var html='<DIV onclick="hideDiv();" style="Z-INDEX: 90; POSITION: absolute; WIDTH: 100%; DISPLAY: block; HEIGHT: '+arrayPageSize[3]+'px; TOP: 0px; LEFT: 0px" id=overlay><A href="#"><IMG style="Z-INDEX: 150; POSITION: absolute; DISPLAY: none; TOP: 411px; LEFT: 626px" id=loadingImage src="loading.gif" width=126 height=22></A></DIV>';
  html+='<DIV style="Z-INDEX: 100; POSITION: absolute; DISPLAY: block; TOP: '+lightboxTop+'px; left: '+lightboxLeft+'px;" id=lightbox><A href="#" onclick="hideDiv(); return false"><IMG style="Z-INDEX: 200; POSITION: absolute" id=closeButton src="'+myurl+'close.gif" width=20 height=20><DIV style="WIDTH: '+iframeWidth+'px" id=lightboxDetails><iframe src="'+myurl+iframeSrc+'" width="'+iframeWidth+'" height="'+iframeHeight+'" frameborder="0"></iframe></div></div>';
  oDiv.innerHTML=html;
  document.body.appendChild(oDiv);
}

function hideDiv(){
	var objoverlay = document.getElementById('overlay');
	if(objoverlay){
		objoverlay.style.visibility = "hidden";
		objoverlay.style.display = 'none';
	}
	
	var objlightbox = document.getElementById('lightbox');
	if(objlightbox){
		objlightbox.style.visibility = "hidden";
		objlightbox.style.display = 'none';
	}
}

function getPageSize(){
	
	var xScroll, yScroll;
	
	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	
	var windowWidth, windowHeight;
	if (self.innerHeight) {	// all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}	
	
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else { 
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){	
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}


	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
	return arrayPageSize;
}