//---------------------------------------
// start: BROWSER DETECTION
//---------------------------------------

//for NS 4+, IE 5+
var doc, doc2, doc3, sty;
var n4,ie,n6;
	if (document.layers){
		n4=true;
		doc = "document.";
		doc2="document.";
		doc3="";sty="";
	} else if (document.all){
		ie=true;
		doc = "document.all.";
		doc2="";
		doc3="";
		sty=".style";
	} else if(document.getElementById){
		n6=true;
		doc = "document.getElementById('";
		doc2="'');";
		doc3="');";
		sty=".style";
	} 
//---------------------------------------
// end: BROWSER DETECTION
//---------------------------------------
//---------------------------------------
// start: main menu data/functions
//---------------------------------------
	menuData = new Array('m_visitbeinecke',168
				,'m_finding',256
				,'m_researchservices',127
				,'m_eduprograms',161
				,'m_events',46);
	
	menuImageArray = new Array();									
	function loadImages(mData){
		numCols = 2;
		numRows = mData.length/numCols;
		for(var i=0; i < numRows; i++){
			imgName = mData[i*numCols];
			imgWidth = mData[(i*numCols)+1];
			imgOnName  = imgName + 'On'; 
			menuImageArray[imgOnName] = new Image(imgWidth,26);
			menuImageArray[imgOnName].src = "/images/" + imgName + "_on.gif";

			imgOffName  = imgName + 'Off'; 
			menuImageArray[imgOffName] = new Image(imgWidth,26);
			menuImageArray[imgOffName].src = "/images/" + imgName + "_off.gif";
		}
	}
	loadImages(menuData);
	
	
	function flipImg(imgName,onOff){
		imgObj = eval('document.' + imgName);
		if (onOff==1){	
			//imgObj.src = menuImageArray[(imgName + 'On' )].src;
			imgObj.src = eval('menuImageArray.'+ imgName + 'On.src');

		}else {
			//imgObj.src = menuImageArray[(imgName + 'Off' )].src;
			imgObj.src = eval('menuImageArray.'+ imgName + 'Off.src');

		}
	}
//---------------------------------------
// end: main menu data/functions
//---------------------------------------