//---------------------------------------
// 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
//---------------------------------------

function popDetailImg(pageName){
	var winParams = 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=1,width=790,height=470,left=5,top=5';
	popPict = window.open(pageName,'FaberBirren',winParams);
	popPict.focus()
}


//---------------------------------------
// start: main menu data/functions
//---------------------------------------
	


	var mainMenuData = new Array('m_home',47
							,'m_access',55
							,'m_database',69
							,'m_articles',65
							,'m_contact',65
							,'m_aalib',88							
							,'m_yalelib',89)

	var mainMenuImageArray = new Array();		
	
						
	function loadImages(mData, imgArray,subdir, imgHeight,imgType){
		
		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' ;
			imgArray[imgOnName] = new Image(imgWidth,imgHeight);
			imgArray[imgOnName].src =subdir + "/" + imgName + "_on." + imgType;
				//alert(subdir + "/" + imgName + "_on." + imgType);
				//		alert( imgArray[imgOnName].src );
				//		alert( imgName + "_on." + imgType);

			imgOffName  = imgName + 'Off' 
			imgArray[imgOffName] = new Image(imgWidth,imgHeight)
			imgArray[imgOffName].src = subdir + "/" + imgName + "_off." + imgType;
		}
	}
	loadImages(mainMenuData, mainMenuImageArray, 'imgs/menu',95,'gif');


	
	function flipImg(imgName,onOff){
		//alert(imgName);
		imgObj = eval('document.' + imgName)
		if (onOff==1){	
			//imgObj.src = menuImageArray[(imgName + 'On' )].src;
			imgObj.src = eval('mainMenuImageArray.'+ imgName + 'On.src');

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

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