function hide() {
	// you must set the number of tabs here
	var numtabs = 3;
	// function
	var item
	var tabLink
	var content
	for (i=1; i<=numtabs; i++) {
		item = "tab" + i;
		tabLink = "tab" + i + "a";
		content = "content" + i;
		//alert(item);
		document.getElementById(tabLink).style.backgroundImage = "url(http://sumcnj.publishpath.com/Websites/sumcnj/templates/UMC-S/UMC-S/Images/"+ i +".jpg)";
		document.getElementById(content).style.display = "none";
		}
	}

function show(which) {
	hide();
	var tab = "tab" + which;
	var link2 = "tab" + which + "a";
	var content2 = "content" + which;
	document.getElementById(link2).style.backgroundImage = "url(http://sumcnj.publishpath.com/Websites/sumcnj/templates/UMC-S/UMC-S/Images/"+ which +"-over.jpg)";
	document.getElementById(content2).style.display = "block";
	document.getElementById(content2).style.height = "1%";
}