if (document.images) {
	webdevon = new Image(); webdevon.src = "../images/dev_on.gif";
	webdevoff = new Image(); webdevoff.src = "../images/dev_off.gif";

	writingon = new Image(); writingon.src = "../images/writing_on.gif";
	writingoff = new Image(); writingoff.src = "../images/writing_off.gif";

	abouton = new Image(); abouton.src = "../images/about_on.gif";
	aboutoff = new Image(); aboutoff.src = "../images/about_off.gif";	
	
  //about subsections
	contacton = new Image(); contacton.src = "../images/sub_on.gif";
	contactoff = new Image(); contactoff.src = "../images/sub_off.gif";
	
	resumeon = new Image(); resumeon.src = "../images/sub_on.gif";
	resumeoff = new Image(); resumeoff.src = "../images/sub_off.gif";
	}

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

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

function openWindow(url, name, w, h) {
  self.name="opener";
  var xCoord = (screen.availWidth - 10 - w) * .5;
  var yCoord = (screen.availHeight -30 - h) * .5;
  popupWin = window.open(url, name, 'scrollbars,menubar,resizable,' + 'width=' + w + ',height=' + h + ",top=" + yCoord + ",left=" + xCoord);
}