if (document.images)
{
homenav = new Image;
homenav_roll = new Image;
aboutnav = new Image;
aboutnav_roll = new Image;
residentialnav = new Image;
residentialnav_roll = new Image;
commercialnav = new Image;
commercialnav_roll = new Image;
processnav = new Image;
processnav_roll = new Image;
estimatesnav = new Image;
estimatesnav_roll = new Image;
contactnav = new Image;
contactnav_roll = new Image;
servicesnav = new Image;
servicesnav_roll = new Image;
portfolionav = new Image;
portfolionav_roll = new Image;

homenav.src = "image/nav/home.gif";
homenav_roll.src = "image/nav/home_roll.gif";
aboutnav.src = "image/nav/about.gif";
aboutnav_roll.src = "image/nav/about_roll.gif";
residentialnav.src = "image/nav/residential.gif";
residentialnav_roll.src = "image/nav/residential_roll.gif";
commercialnav.src = "image/nav/commercial.gif";
commercialnav_roll.src = "image/nav/commercial_roll.gif";
processnav.src = "image/nav/process.gif";
processnav_roll.src = "image/nav/process_roll.gif";
estimatesnav.src = "image/nav/estimates.gif";
estimatesnav_roll.src = "image/nav/estimates_roll.gif";
contactnav.src = "image/nav/contact.gif";
contactnav_roll.src = "image/nav/contact_roll.gif";
servicesnav.src = "image/nav/services.gif";
servicesnav_roll.src = "image/nav/services_roll.gif";
portfolionav.src = "image/nav/portfolio.gif";
portfolionav_roll.src = "image/nav/portfolio_roll.gif";
}