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];}
}

// JUMP MENU FUNCTION
function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}


// Clear input form function
function clickclear(thisfield, defaulttext) {
if (thisfield.value == defaulttext) {
thisfield.value = "";
}
}

function clickrecall(thisfield, defaulttext) {
if (thisfield.value == "") {
thisfield.value = defaulttext;
}
}



function externalLinks() {   // MAINTAINS ACCESSIBILITY BY SHOWING AN IMAGE NEXT TO LINKS THAT OPEN IN A NEW WINDOW
 if (!document.getElementsByTagName) return; 
 var anchors = document.getElementsByTagName("a"); 
 for (var i=0; i<anchors.length; i++) { 
   var anchor = anchors[i]; 
   if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external" && anchor.getAttribute("class") != "nothing" && anchor.className != "nothing" && anchor.getAttribute("class") != "button" && anchor.className != "button") {
     anchor.target = "_blank"; 
	 anchor.setAttribute("class", "externalLink");
	 anchor.className = "externalLink" ; //IE PROPRIETORY VERSION
	 }
   // a similar trick with pdf extensions, after already having set all the above.
   if (anchor.getAttribute("href").substring(anchor.getAttribute("href").lastIndexOf(".")) == ".pdf" && anchor.className != "nothing" && anchor.getAttribute("class") != "nothing" && anchor.getAttribute("class") != "button" && anchor.className != "button") {
	 anchor.setAttribute("class", "pdfLink");
	 anchor.className = "pdfLink" ; //IE PROPRIETORY VERSION
   }
   // another similar trick for mailto: links, after already having set all the above.
   if (anchor.getAttribute("href").substring(0,7) == "mailto:" && anchor.className != "nothing" && anchor.getAttribute("class") != "nothing" && anchor.getAttribute("class") != "button" && anchor.className != "button") {
	 anchor.setAttribute("class", "emailLink");
	 anchor.className = "emailLink" ; //IE PROPRIETORY VERSION
   }
 } 
}

function setUpRotation() { // initialising the set up to allow for rotating the skyscraper between 2 banners
	sky1="<a href=\"/abstractsubmission.asp\"><img src=\"/images/TRIB120x600.gif\" border=\"0\" alt=\"ICoBT 2011: International Conference on BioTribology\" /></a>";
	sky2="<a href='http://leeds-lyon.insa-lyon.fr' class='nothing' rel='external' onclick='window.open(this.href); return false;'><img src='/images/tribology_banniere_verticale.jpg' border='0' alt='38th Leeds-Lyon Symposium on Tribology' /></a>";
	thisFlag=0;
	// setTimeout ("rotateImage()", 10000); 
	// not necessary on this site.
}

function rotateImage() {	// set up to allow for rotating the skyscraper between 2 banners
	
	if (thisFlag==0) {
		thisFlag=1;
		document.getElementById('sidebar_skyscraper').innerHTML	= sky1 ;		
	} else {
		thisFlag=0;
		document.getElementById('sidebar_skyscraper').innerHTML	= sky2 ;
	}	
	
	setTimeout ("rotateImage()", 10000); 
}