var oHome = new Image().src="/insurance/images/nav-home.gif";
var oProp = new Image().src="/insurance/images/nav-prop.gif";
var oBuy = new Image().src="/insurance/images/nav-buy.gif";
var oSell = new Image().src="/insurance/images/nav-sell.gif";
var oComm = new Image().src="/insurance/images/nav-comm.gif";
var oAbout = new Image().src="/insurance/images/nav-about.gif";
var oContact = new Image().src="/insurance/images/nav-contact.gif";
var oHomeOver = new Image().src="/insurance/images/nav-home-over.gif";
var oPropOver = new Image().src="/insurance/images/nav-prop-over.gif";
var oBuyOver = new Image().src="/insurance/images/nav-buy-over.gif";
var oSellOver = new Image().src="/insurance/images/nav-sell-over.gif";
var oCommOver = new Image().src="/insurance/images/nav-comm-over.gif";
var oAboutOver = new Image().src="/insurance/images/nav-about-over.gif";
var oContactOver = new Image().src="/insurance/images/nav-contact-over.gif";
function $(id) {
     if (document.getElementById != null) {
          return document.getElementById(id);
     }
     if (document.all != null) {
          return document.all[id];
     }
     if (document.layers != null) {
          return document.layers[id];
     }
     return null;
}
function rollIt(img, dir) {
     if (dir == 'in') {
          switch (img.id) {
               case "nav-home":
                    img.src = oHomeOver;
                    break;
               case "nav-prop":
                    img.src = oPropOver;
                    break;
               case "nav-buy":
                    img.src = oBuyOver;
                    break;
               case "nav-sell":
                    img.src = oSellOver;
                    break;
               case "nav-comm":
                    img.src = oCommOver;
                    break;
               case "nav-about":
                    img.src = oAboutOver;
                    break;
               case "nav-contact":
                    img.src = oContactOver;
                    break;
          }
     } else {
          switch (img.id) {
               case "nav-home":
                    img.src = oHome;
                    break;
               case "nav-prop":
                    img.src = oProp;
                    break;
               case "nav-buy":
                    img.src = oBuy;
                    break;
               case "nav-sell":
                    img.src = oSell;
                    break;
               case "nav-comm":
                    img.src = oComm;
                    break;
               case "nav-about":
                    img.src = oAbout;
                    break;
               case "nav-contact":
                    img.src = oContact;
                    break;
          }               
     }
}