//---------------------------------------------
// Image swapping functions for HTML mouseover
// effect on menus and other links
//---------------------------------------------


function ImgSwap(imgObj, imgFile) {
	imgObj.src = imgObj.getAttribute(imgFile||"origsrc");
}

function SimpleSwapSetup(){
  var x = document.getElementsByTagName("img");
  for (var i=0;i<x.length;i++){
    var oversrc = x[i].getAttribute("oversrc");
    if (!oversrc) continue;
    // preload image
    // comment the next two lines to disable image pre-loading
    x[i].oversrc_img = new Image();
    x[i].oversrc_img.src=oversrc;
    // set event handlers
    x[i].onmouseover = new Function("ImgSwap(this,'oversrc');");
    x[i].onmouseout = new Function("ImgSwap(this);");
    // save original src
    x[i].setAttribute("origsrc",x[i].src);
  }
}


var PreSimpleSwapOnload =(window.onload)? window.onload : function(){};
window.onload = function(){PreSimpleSwapOnload(); SimpleSwapSetup();}