function prodTab(d) {
		var dir = d;
		var elem = document.getElementById('prod-tab-thru-img');		
		var txtElem = document.getElementById('prod-tab-txt-in');
		var currentImg = elem.src;				
		var slash = currentImg.lastIndexOf('/') + 1;
		var dot = currentImg.lastIndexOf('.');
		var nom = currentImg.slice(slash,dot); /* 01, 02, etc. */
		
		var ielem = document.getElementById('tabthru-popper');
		var winName = "winT";
		var winParams = "height=500,width=660,menubar=no,toolbar=no,statusbar=no";
		var ocTxt1 = "images/product_tab_thrus/rack/basicunit_rgb.jpg";
		var ocTxt2 = "images/product_tab_thrus/rack/gowningbenchwire_rgb.jpg";
		var ocTxt3 = "images/product_tab_thrus/rack/m1848v4_rgb.jpg";
		var ocTxt4 = "images/product_tab_thrus/rack/adjustable1_rgb.jpg";
		var ocTxt5 = "images/product_tab_thrus/rack/stencilshelfcart_rgb.jpg";
		
		var img01 = new Image();
		img01.src = "images/product_tab_thrus/rack/01.jpg"		
		var img02 = new Image();
		img02.src = "images/product_tab_thrus/rack/02.jpg"
		var img03 = new Image();
		img03.src = "images/product_tab_thrus/rack/03.jpg"
		var img04 = new Image();
		img04.src = "images/product_tab_thrus/rack/04.jpg"
		var img05 = new Image();
		img05.src = "images/product_tab_thrus/rack/05.jpg"
		
		var txt01 = "<strong>Basic Unit</strong>";
		var txt02 = "<strong>Bench</strong>";
		var txt03 = "<strong>Angled Shelf Cart</strong></span>";
		var txt04 = "<strong>AdjusTable with Overhead</strong>";
		var txt05 = "<strong>Stencilshelf</strong>";
		
		if (dir == 0) {
			if (nom == '01') {
				elem.src = img05.src;
				txtElem.innerHTML = txt05;
				ielem.onclick = function() { winT=window.open(ocTxt5,"winT",winParams); winT.resizeTo(353,580); return false; };
			}
			else if (nom == '02') {
				elem.src = img01.src;
				txtElem.innerHTML = txt01;
				ielem.onclick = function() { winT=window.open(ocTxt1,winName,winParams); winT.resizeTo(587,580); return false; };
			}
			else if (nom == '03') {
				elem.src = img02.src;
				txtElem.innerHTML = txt02;
				ielem.onclick = function() { winT=window.open(ocTxt2,winName,winParams); winT.resizeTo(670,533); return false; };
			}
			else if (nom == '04') {
				elem.src = img03.src;
				txtElem.innerHTML = txt03;
				ielem.onclick = function() { winT=window.open(ocTxt3,winName,winParams); winT.resizeTo(384,580); return false; };
			}
			else if (nom == '05') {
				elem.src = img04.src;
				txtElem.innerHTML = txt04;
				ielem.onclick = function() { winT=window.open(ocTxt4,winName,winParams); winT.resizeTo(404,580); return false; };
			}
		}		
		else if (dir == 1) {
			if (nom == '01') {
				elem.src = img02.src;
				txtElem.innerHTML = txt02;
				ielem.onclick = function() { winT=window.open(ocTxt2,winName,winParams); winT.resizeTo(670,533); return false; };				
			}
			else if (nom == '02') {
				elem.src = img03.src;
				txtElem.innerHTML = txt03;
				ielem.onclick = function() { winT=window.open(ocTxt3,winName,winParams); winT.resizeTo(384,580); return false; };
			}
			else if (nom == '03') {
				elem.src = img04.src;
				txtElem.innerHTML = txt04;
				ielem.onclick = function() { winT=window.open(ocTxt4,winName,winParams); winT.resizeTo(480,671); return false; };
			}
			else if (nom == '04') {
				elem.src = img05.src;
				txtElem.innerHTML = txt05;
				ielem.onclick = function() { winT=window.open(ocTxt5,winName,winParams); winT.resizeTo(404,580); return false; };
			}
			else if (nom == '05') {
				elem.src = img01.src;
				txtElem.innerHTML = txt01;
				ielem.onclick = function() { winT=window.open(ocTxt1,winName,winParams); winT.resizeTo(587,580); return false; };
			}
		}
	}