function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
	back = newImage("images/back-over.gif");	
	cont = newImage("images/cont-over.gif");	
	exit = newImage("images/exit1-over.gif");
	exit1 = newImage("images/exit1-over.gif");
	button1 = newImage("images/mod1-over.gif");
	button2 = newImage("images/cradas-over.gif");
	button3 = newImage("images/patents-over.gif");
	button4 = newImage("images/license-over.gif");
	button5 = newImage("images/royalties-over.gif");
	button6 = newImage("images/ethics-over.gif");
	intro = newImage("images/intro-over.gif");
	
	}
}

// -->


<!-- Hide from other browsers
version="unknown";
browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
if(browserName == "Netscape") {
    if(browserVer >= 3) version = "n3";
    else version = "n2";
}
if(browserName == "Microsoft Internet Explorer") {
    if(browserVer >= 3) version = "n3";
    else version = "n2";
}

if (version == "n3") {
	if (document.images) {
	back = newImage("images/back-over.gif");	
	cont = newImage("images/cont-over.gif");	
	exit = newImage("images/exit1-over.gif");
	exit1 = newImage("images/exit1-over.gif");
	button1 = newImage("images/mod1-over.gif");
	button2 = newImage("images/cradas-over.gif");
	button3 = newImage("images/patents-over.gif");
	button4 = newImage("images/license-over.gif");
	button5 = newImage("images/royalties-over.gif");
	button6 = newImage("images/ethics-over.gif");
	intro = newImage("images/intro-over.gif");
    
}

function img_act(imgName) {
    if (version == "n3") {
        imgOn = eval(imgName + "on.src");
        document[imgName].src = imgOn;
    }
}

function img_inact(imgName) {
    if (version == "n3") {
        imgOff = eval(imgName + "off.src");
        document[imgName].src = imgOff;
    }
}
}


 

 var popWin = null    // use this when referring to pop-up window
 var winCount = 0
 var winName = "popWin"
 function openPopWin(winURL, winWidth, winHeight, winFeatures, winLeft, winTop){
   var d_winLeft = 20  // default, pixels from screen left to window left
   var d_winTop = 20   // default, pixels from screen top to window top
   winName = "popWin" + winCount++ //unique name for each pop-up window
   closePopWin()           // close any previously opened pop-up window
   if (openPopWin.arguments.length >= 4)  // any additional features? 
     winFeatures = "," + winFeatures
   else 
     winFeatures = "" 
   if (openPopWin.arguments.length == 6)  // location specified
     winFeatures += getLocation(winWidth, winHeight, winLeft, winTop)
   else
     winFeatures += getLocation(winWidth, winHeight, d_winLeft, d_winTop)
   popWin = window.open(winURL, winName, "width=" + winWidth 
            + ",height=" + winHeight + winFeatures)
   }
 function closePopWin(){    // close pop-up window if it is open 
   if (navigator.appName != "Microsoft Internet Explorer" 
       || parseInt(navigator.appVersion) >=4) //do not close if early IE
     if(popWin != null) if(!popWin.closed) popWin.close() 
   }
 function getLocation(winWidth, winHeight, winLeft, winTop){
   return ""
   }
 

 function getLocation(winWidth, winHeight, winLeft, winTop){
   var winLocation = ""
   if (winLeft < 0)
     winLeft = screen.width - winWidth + winLeft
   if (winTop < 0)
     winTop = screen.height - winHeight + winTop
   if (winTop == "cen")
     winTop = (screen.height - winHeight)/2 - 20
   if (winLeft == "cen")
     winLeft = (screen.width - winWidth)/2
   if (winLeft>0 & winTop>0)
     winLocation =  ",screenX=" + winLeft + ",left=" + winLeft   
                 + ",screenY=" + winTop + ",top=" + winTop
   else
     winLocation = ""
   return winLocation
   }