//Image Preload
function preloadImages()
{
      image1 = new Image();
      image1.src = "imgs/tab_home_over.jpg";

      image2 = new Image();
      image2.src = "imgs/tab_about_over.jpg";

      image3 = new Image();
      image3.src = "imgs/tab_contact_over.jpg";

      image4 = new Image();
      image4.src = "imgs/tab_estimates_over.jpg";

      image5 = new Image();
      image5.src = "imgs/tab_faq_over.jpg";

      image6 = new Image();
      image6.src = "imgs/tab_references_over.jpg";
}

//Mouseover
function change_pic(newpic, name)
{
	document.getElementById(name).src = newpic;
}