function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments;
    for(i=0; i<a.length; i++)
      if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array;
  for(i=0;i<(a.length-2);i+=3)
    if ((x=MM_findObj(a[i]))!=null) {
      document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];
    }
}

// Simple helper function to preload all rollover images.  I prefer this here
// rather than in the body tag.
function glsLoad() {
  MM_preloadImages(
                   '/2010/images/nav/nav-roll-program.png',
                   '/2010/images/nav/nav-roll-wednesday.png',
                   '/2010/images/nav/nav-roll-thursday.png',
                   '/2010/images/nav/nav-roll-friday.png',
                   '/2010/images/nav/nav-roll-glses.png',
                   '/2010/images/nav/nav-roll-speakers.png',
                   '/2010/images/nav/nav-roll-submissions.png',
                   '/2010/images/nav/nav-roll-register.png',
                   '/2010/images/nav/nav-roll-location.png',
                   '/2010/images/nav/nav-roll-sponsors.png',
                   '/2010/images/nav/nav-roll-organizers.png',
                   '/2010/images/nav/nav-roll-archive.png',
                   '/2010/images/nav/nav-roll-gls.png',
                   '/2010/images/nav/nav-roll-cfp.png',
                   '/2010/images/nav/nav-roll-mls.png'
                   );
}