function changeEmailLink(url) {
		document.getElementById('emailImage').href = "javascript:winPopup('email.php?image=" + url + "','emailImage',570,330,'no');";
		document.getElementById('enlargeImage').href = "javascript:winPopup('enlarge.php?image=" + url + "','emailImage',704,495,'no');";
	}

	function hoverOn(num,doChange) {
		if (doChange == 1) {
			document.getElementById("zoom"+num).src = "images/zoom" + num + "_on.gif";
		} else if (num > current) {
			document.getElementById("zoom"+num).src = "images/zoom" + num + "_on.gif";
		}
	}
	
	function hoverOff(num,doChange) {
		if (doChange == 1) {
			document.getElementById("zoom"+num).src = "images/zoom" + num + ".gif";
		} else if (num > current) {
			document.getElementById("zoom"+num).src = "images/zoom" + num + ".gif";
		}
	}
	
	function zoomIn() 
	{
	    current++;
		if (current > 4) {
		    document.plus.src = "images/plus_off.gif";
			document.sample_pic.src = images[5].src;
			current = 5;
			swap(5);
		} else  { //if (current < 6)
			swap(current);
			document.minus.src = "images/minus.gif";
			document.plus.src = "images/plus.gif";
		    document.sample_pic.src = images[current].src;
		}
		
		var url = document.sample_pic.src;
		changeEmailLink(url);
	}//end function
	
	function zoomOut() 
	{	
		current--;
		if (current < 2) {
		    document.minus.src = "images/minus_off.gif";
			document.sample_pic.src = images[1].src;
			current = 1;
			swap(1);
		} else { //if (current > 1)
			swap(current);
			document.minus.src = "images/minus.gif";
			document.plus.src = "images/plus.gif";
		    document.sample_pic.src = images[current].src;
		}
		
		var url = document.sample_pic.src;
		changeEmailLink(url);
	}//end function
	
	function swap(num)
	{
	    document.sample_pic.src = images[num].src;
	    current = num;
		
		var url = document.sample_pic.src;
		changeEmailLink(url);
		
		var endNum = num;
		//use for the div/html method
		//document.getElementById("zoom"+num).className = "zoomBarsItemSelected";
		
		//use for the image method
		var i=1;
		var endnum = current;
		for (i=1;i<=endnum;i++) {
			document.getElementById("zoom"+i).src = "images/zoom" + i + "_on.gif";
		}
		
		for (i=endnum+1;i<=5;i++) {
			document.getElementById("zoom"+i).src = "images/zoom" + i + ".gif";
		}
		
		if (current < 2) {
		    document.minus.src = "images/minus_off.gif";
			document.plus.src = "images/plus.gif";
		} else if (current > 4) {
			document.minus.src = "images/minus.gif";
		    document.plus.src = "images/plus_off.gif";
		} else { //if (current > 1)
			document.minus.src = "images/minus.gif";
			document.plus.src = "images/plus.gif";
		}	
	}//end function