function getPlatformInfo() {
		bName = navigator.appName;
        bVer = parseInt(navigator.appVersion);
        if(bName=="Netscape") {
        	doc = "document";
       		sty = "";
		} else if(bName=="Microsoft Internet Explorer") {
 			doc = "document.all";
			sty = ".style";
		}
	}
	
	function writeData_Obj(dataToWrite, layerObj) {
		/* this has been updated for netscape 6 */
		if((navigator.appVersion.charAt(0) == "5") & (navigator.appName == "Netscape")){
				layerObj.innerHTML=dataToWrite;
		} else if (bName == "Netscape") {
				layerObj.document.open();
				layerObj.document.write(dataToWrite);
				layerObj.document.close();
		} else if (bName == "Microsoft Internet Explorer") {
				layerObj.innerHTML = dataToWrite;
		}
	}
	
	function openWindowBio(windowURL, windowWidth, windowHeight, windowName) {
		xLoc = 20;
		yLoc = 20;
		
		if (bName == "Netscape" && bVer > 3 ) {
			windowProperties = "scrollbars=no,status=yes,width=" + windowWidth + ",height=" + windowHeight + ",screenX=" + xLoc +",screenY=" +yLoc;
			
		} else if (bName == "Microsoft Internet Explorer" && bVer > 3) {
			windowProperties = "scrollbars=yes,status=yes,width=" + windowWidth + ",height=" + windowHeight + ",top="+xLoc+",left="+yLoc;
			
		}
		windowObj = window.open(windowURL, windowName, windowProperties);
		windowObj.focus();
	}
	
	function openWindow(windowURL, windowWidth, windowHeight, windowName) {
		if (bName == "Netscape" && bVer > 3 ) {
			windowProperties = "scrollbars=no,status=yes,width=" + windowWidth + ",height=" + windowHeight + ",screenX=160,screenY=160";
			
		} else if (bName == "Microsoft Internet Explorer" && bVer > 3) {
			windowProperties = "scrollbars=yes,status=yes,width=" + windowWidth + ",height=" + windowHeight + ",top=160,left=160";
			
		}
		windowObj = window.open(windowURL, windowName, windowProperties);
		windowObj.focus();
	}
	
	function openWindowTools(windowURL, windowWidth, windowHeight, windowName) {
		if (bName == "Netscape" && bVer > 3 ) {
			screenwidth = window.innerWidth;
			screenheight = window.innerHeight;
			windowHPos = screenwidth - windowWidth;
			windowVPos = screenheight - windowHeight;
			windowProperties = "scrollbars=no,toolbar=yes,width=" + windowWidth + ",height=" + windowHeight + ",screenX=" + windowHPos  + ",screenY=" + windowVPos;
			
		} else if (bName == "Microsoft Internet Explorer" && bVer > 3) {
			screenwidth = document.body.offsetWidth;
			screenheight = document.body.offsetHeight;
			windowHPos = screenwidth - windowWidth;
			windowVPos = screenheight - windowHeight;
			windowProperties = "scrollbars=yes,toolbar=yes,width=" + windowWidth + ",height=" + windowHeight + ",top=" + windowVPos  + ",left=" + windowHPos;
			
		}
		
		windowObj = window.open(windowURL, windowName, windowProperties);
		windowObj.focus();
	}
	
	function overMenu(imgNum) {
		menuObj = eval("menu" + (imgNum+1));
		if (menuObj.complete == true) { 
			document.menu.src=eval("menu" + (imgNum+1) + ".src");
			if ((imgNum == 1) || (imgNum == 2)) {
				capName="cap" + imgNum;
				document[capName].src = eval(capName + "On.src");
			}
		}
	}
	
	function offMenu(imgNum) {
		menuObj = eval("menu" + 1);
		document.menu.src=eval("menu" + 1 + ".src");
		if ((imgNum == 1) || (imgNum == 2)) {
			capName="cap" + imgNum;
			document[capName].src = eval(capName + "Off.src");
		}
	} 
	
	function downMenu(imgNum) {
		imgName = "img" + (imgNum);
		document[imgName].src = eval("imgBig" + imgNum + ".src");
		arrowName = "arrow" + imgNum;
		zoomName = "zoom" + imgNum;
		document[arrowName].src = eval(arrowName + "On.src");
		document[zoomName].src = eval("zoom" + "On.src");
	}
	
	function downMenu2(imgNum) {
		imgName = "img" + (imgNum);
		document[imgName].src = eval("imgBig" + imgNum + ".src");
		arrowName = "arrow" + imgNum;
		zoomName = "zoom" + imgNum;
		document[arrowName].src = eval(arrowName + "On.src");
		document[zoomName].src = eval("QT" + "On.src");
	}
	
	function downBio() {
		bioObj = eval(doc + ".bio" + sty)
		bioObj.visibility = "visible";
	}
	
	function overArrow(imgNum) {
		capname = "cap" + imgNum;
		document[capname].src = eval(capname + "On" + ".src");
	}
	
	function offArrow(imgNum) {
		if (arrow_Array[imgNum] == false) {
			capname = "cap" + imgNum;
			document[capname].src = eval(capname + "Off" + ".src");
		}
	} 
	
	function downArrow(imgNum) {
		capname = "cap" + imgNum;
		if (arrow_Array[imgNum] == false) {
			document[capname].src = eval(capname + "On" + ".src");
			arrow_Array[imgNum] = true;
		} else {
			document[capname].src = eval(capname + "Off" + ".src");
			arrow_Array[imgNum] = false;
		}
	}
	
	function overHome() {
		document['home'].src = eval("homeOver.src");
	}
	
	function offHome() {
		document['home'].src = eval("homeOff.src");
	}
	
	function overZoom(imgNum) {
		capname = "cap" + imgNum;
		document[capname].src = eval(capname + "Zoom" + ".src");
		arrow_Array[imgNum] = false;
	}