//Prealoading rollover images
var offImgArray = new Array();
offImgArray[0] = new Image();
offImgArray[1] = new Image();
offImgArray[2] = new Image();
offImgArray[3] = new Image();
offImgArray[4] = new Image();
offImgArray[5] = new Image();
offImgArray[6] = new Image();
offImgArray[7] = new Image();
offImgArray[8] = new Image();
offImgArray[9] = new Image();
offImgArray[10] = new Image();

var onImgArray = new Array();
onImgArray[0] = new Image();
onImgArray[1] = new Image();
onImgArray[2] = new Image();
onImgArray[3] = new Image();
onImgArray[4] = new Image();
onImgArray[5] = new Image();
onImgArray[6] = new Image();
onImgArray[7] = new Image();
onImgArray[8] = new Image();
onImgArray[9] = new Image();
onImgArray[10] = new Image();

offImgArray[0].src = "/rollover/company_off.gif";
offImgArray[1].src = "/rollover/relations_off.gif";
offImgArray[2].src = "/rollover/products_off.gif";
offImgArray[3].src = "/rollover/research_off.gif";
offImgArray[4].src = "/rollover/employment_off.gif";
offImgArray[5].src = "/rollover/contact_off.gif";
offImgArray[6].src = "/rollover/news_off.gif";
offImgArray[7].src = "/rollover/links_off.gif";
offImgArray[8].src = "/rollover/silicon_off.gif";
offImgArray[9].src = "/rollover/wafertech_off.gif";
offImgArray[10].src = "/rollover/home_off.gif";

onImgArray[0].src = "/rollover/company_on.gif";
onImgArray[1].src = "/rollover/relations_on.gif";
onImgArray[2].src = "/rollover/products_on.gif";
onImgArray[3].src = "/rollover/research_on.gif";
onImgArray[4].src = "/rollover/employment_on.gif";
onImgArray[5].src = "/rollover/contact_on.gif";
onImgArray[6].src = "/rollover/news_on.gif";
onImgArray[7].src = "/rollover/links_on.gif";
onImgArray[8].src = "/rollover/silicon_on.gif";
onImgArray[9].src = "/rollover/wafertech_on.gif";
onImgArray[10].src = "/rollover/home_on.gif";

function roll_on(img) {
  if (img=="company")
  {
    document.images[img].src=onImgArray[0].src;
  }
  else if (img=="relations")
  {
    document.images[img].src=onImgArray[1].src;
  }
  else if (img=="products")
  {
    document.images[img].src=onImgArray[2].src;
  }
  else if (img=="research")
  {
    document.images[img].src=onImgArray[3].src;
  }
  else if (img=="careers")
  {
    document.images[img].src=onImgArray[4].src;
  }
  else if (img=="contact")
  {
    document.images[img].src=onImgArray[5].src;
  }
  else if (img=="news")
  {
    document.images[img].src=onImgArray[6].src;
  }
  else if (img=="links")
  {
    document.images[img].src=onImgArray[7].src;
  }
  else if (img=="silicon")
  {
    document.images[img].src=onImgArray[8].src;
  }
  else if (img=="wafertech")
  {
    document.images[img].src=onImgArray[9].src;
  }
  else
  {
    document.images[img].src=onImgArray[10].src;
  }
  return true;
}
function roll_off(img) {
  if (img=="company")
  {
    document.images[img].src=offImgArray[0].src;
  }
  else if (img=="relations")
  {
    document.images[img].src=offImgArray[1].src;
  }
  else if (img=="products")
  {
    document.images[img].src=offImgArray[2].src;
  }
  else if (img=="research")
  {
    document.images[img].src=offImgArray[3].src;
  }
  else if (img=="careers")
  {
    document.images[img].src=offImgArray[4].src;
  }
  else if (img=="contact")
  {
    document.images[img].src=offImgArray[5].src;
  }
  else if (img=="news")
  {
    document.images[img].src=offImgArray[6].src;
  }
  else if (img=="links")
  {
    document.images[img].src=offImgArray[7].src;
  }
  else if (img=="silicon")
  {
    document.images[img].src=offImgArray[8].src;
  }
  else if (img=="wafertech")
  {
    document.images[img].src=offImgArray[9].src;
  }
  else
  {
    document.images[img].src=offImgArray[10].src;
  }
  return true;
}