var menushowing = "blankmenu"


if (document.layers) {
  visible = 'show';
  hidden = 'hide';
  relative = 'relative';
  absolute = 'absolute';
} else if (document.all) {
  visible = 'visible';
  hidden = 'hidden';
  relative = 'relative';
  absolute = 'absolute';
}



if (document.images) {

MenuHome_A     = new Image();
MenuHome_A.src  = "images/MenuHome_a.gif";

MenuHome_B     = new Image();
MenuHome_B.src  = "images/MenuHome_b.gif";

MenuAbout_A     = new Image();
MenuAbout_A.src  = "images/MenuAbout_a.gif";

MenuAbout_B     = new Image();
MenuAbout_B.src  = "images/MenuAbout_b.gif";

MenuServices_A     = new Image();
MenuServices_A.src  = "images/MenuServices_a.gif";

MenuServices_B     = new Image();
MenuServices_B.src  = "images/MenuServices_b.gif";

MenuPortfolio_A     = new Image();
MenuPortfolio_A.src  = "images/MenuPortfolio_a.gif";

MenuPortfolio_B     = new Image();
MenuPortfolio_B.src  = "images/MenuPortfolio_b.gif";

MenuContact_A     = new Image();
MenuContact_A.src  = "images/MenuContact_a.gif";

MenuContact_B     = new Image();
MenuContact_B.src  = "images/MenuContact_b.gif";


}

function imgON(imgName) { if (document.images)  {
document[imgName].src = eval(imgName + "_B.src"); }}

function imgOFF(imgName) { if (document.images) {
document[imgName].src = eval(imgName + "_A.src"); }}

function reveal(menu) {
  if (document.all) {
    iswMenuShowing = document.all(menushowing).style;
    iswMenu = document.all(menu).style;
    iswMenuShowing.visibility = hidden;
    iswMenuShowing.position = absolute;
    iswMenu.position = absolute;
    iswMenu.visibility = visible;
    menushowing = menu;
  }
    
  }