if (GMCERTIFIED == null) {
			GMCERTIFIED = new Object();
		}
		GMCERTIFIED.WHATIS = new Object(); 


		GMCERTIFIED.WHATIS.tabsArray = new Array();
		GMCERTIFIED.WHATIS.tabsArray[0] = "Built-In Value";
		GMCERTIFIED.WHATIS.tabsArray[1] = "Warranty";
 		GMCERTIFIED.WHATIS.tabsArray[2] = "117-Point Inspection";
 		GMCERTIFIED.WHATIS.tabsArray[3] = "Vehicle History Reports";
 		GMCERTIFIED.WHATIS.tabsArray[4] = "3-Day/150-Mile Guarantee";
 		GMCERTIFIED.WHATIS.tabsArray[5] = "Videos";
 		
 		GMCERTIFIED.WHATIS.showTab = function showTab(stabId, baseHREF)
 		{
 			var tabsArray = GMCERTIFIED.WHATIS.tabsArray;
 		
 			var tabId = -1;
 			if (isInteger(stabId) == true) {
 			  tabId = parseInt(stabId);
 			}
 		
 	 		if( tabId > 5 || tabId < 0){
				tabId = -1;
 	 		}
			if (tabId >= 0) {
				$("#headerText").html(tabsArray[tabId]);
			} else {
				$("#headerText").html("What Is GM Certified?");
			}	
 			for( var i=0; i < tabsArray.length; i++){
 				$("#whatis_tabs_"+i).hide();
 				var link = baseHREF + "/whatis?tabId=" + i;
 				var html = "<a href='" + link + "'>" + tabsArray[i] + "</a>"
 				$("#whatis_tabs_li_"+i).html(html);
 			}
			if( tabId == -1) {
				$("#whatis_tabs_x").show();
			} else {
				$("#whatis_tabs_x").hide();
 				$("#whatis_tabs_"+tabId).show();
 				$("#whatis_tabs_li_"+tabId).html('<strong>'+tabsArray[tabId]+'</strong>');
			}
 		}