var oview = new Image();
oview.src = "/images/nav/co_oview.gif"
var oviewOn = new Image();
oviewOn.src = "/images/nav/co_oview_ovr.gif"
var presales = new Image();
presales.src = "/images/nav/pre_sales.gif"
var presalesOn = new Image();
presalesOn.src = "/images/nav/pre_sales_ovr.gif"
var kb = new Image();
kb.src = "/images/nav/kb.gif"
var kbOn = new Image();
kbOn.src = "/images/nav/kb_ovr.gif"
var tsup = new Image();
tsup.src = "/images/nav/tsupport.gif"
var tsupOn = new Image();
tsupOn.src = "/images/nav/tsupport_ovr.gif"