function preload(imgName, imgFile) {
		eval(imgName + "= new Image()");
		eval(imgName+ ".src = \"" + imgFile+ "\"");
	}

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

	preload("navUP_what", "images/navUP_what.gif");
	preload("navOVER_what", "images/navOVER_what.gif");
	preload("navUP_projects", "images/navUP_projects.gif");
	preload("navOVER_projects", "images/navOVER_projects.gif");
	preload("navUP_before", "images/navUP_before.gif");
	preload("navOVER_before", "images/navOVER_before.gif");
	preload("navUP_pub", "images/navUP_pub.gif");
	preload("navOVER_pub", "images/navOVER_pub.gif");	
	preload("navUP_artwork", "images/navUP_artwork.gif");
	preload("navOVER_artwork", "images/navOVER_artwork.gif");	
	preload("navUP_test", "images/navUP_test.gif");
	preload("navOVER_test", "images/navOVER_test.gif");	
	preload("navUP_expertise", "images/navUP_expertise.gif");
	preload("navOVER_expertise", "images/navOVER_expertise.gif");							
	
	preload("helenaBEFORE", "images/beforeafter/helena_before.jpg");
	preload("helenaAFTER", "images/beforeafter/helena_after.jpg");
	preload("francisBEFORE", "images/beforeafter/francis_before.jpg");
	preload("francisAFTER", "images/beforeafter/francis_after.jpg");
	preload("berkeleyBEFORE", "images/beforeafter/berkeley_before.jpg");
	preload("berkeleyAFTER", "images/beforeafter/berkeley_after.jpg");
	preload("sfBEFORE", "images/beforeafter/sf_before.jpg");
	preload("sfAFTER", "images/beforeafter/sf_after.jpg");
	
	preload("gobackUP", "images/beforeafter/gobackUP.gif");
	preload("gobackOVER", "images/beforeafter/gobackOVER.gif");	
	preload("moreUP", "images/beforeafter/moreUP.gif");
	preload("moreOVER", "images/beforeafter/moreOVER.gif");		
	
	preload("p1_image2UP", "images/projects/p1_image2.jpg");
	preload("p1_image2OVER", "images/projects/p1_image2OVER.jpg");	

	function WinPopUp(name, URL, w, h, l, t) {
		eval(name + "popup = window.open(URL, '" + name + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=" + w + ",height=" + h + ",left=" + l + ",top=" + t + "');");
	}	
	
	var theWin
	
	function popup(theURL) {
	
		if(theWin == null || theWin.closed) {
			theWin = window.open(theURL, "theWin", "toolbar=no,location=no,directories=no,status=yes,menubar=no,scrollbars=yes,resizable=yes,width=300,height=400,top=25,left=25");
		} else {
			theWin.close()
			theWin = window.open(theURL, "theWin", "toolbar=no,location=no,directories=no,status=yes,menubar=no,scrollbars=yes,resizable=yes,width=300,height=400,top=25,left=25");
		}
	}

	var openWin;

function openWindow(theURL,winName,features) {
      openWin = window.open(theURL,winName,features);
          window.name = 'opener';
}

var photos;
var counter = 0;
	function writePhotos(imgTag) {
		if (counter == photos.length-1) 
			document.getElementById('nextPhoto').innerHTML = "<div align=\"center\"><a href=\"javascript:self.close();\" class=\"project\">close window</a></div>";
		
		if (counter >= photos.length) counter=1;
				
		
		imgTag = photos[counter];
		document.getElementById('projectPhotos').innerHTML = imgTag;
		counter++;
	}