function setTabOne() {
		//obtain reference to div
		omain = document.getElementById("dloadstab");
		omaintwo = document.getElementById("carttab");
		otabone = document.getElementById("tabone");
		otabtwo = document.getElementById("tabtwo");
				
		//set styles
		omain.className = "show";
		omaintwo.className = "hide";
		otabone.className = "dloads dldbrd";
		otabtwo.className = "dloads";
		}
		
function setTabTwo() {
		//obtain reference to div
		omain = document.getElementById("dloadstab");
		omaintwo = document.getElementById("carttab");
		otabone = document.getElementById("tabone");
		otabtwo = document.getElementById("tabtwo");		
				
		//set styles
		omain.className = "hide";
		omaintwo.className = "show";
		otabone.className = "dloads";
		otabtwo.className = "dloads dldbrd";
		}