function changeImages() {
 if (document.images && (preloadFlag == true)) {
  for (var i=0; i<changeImages.arguments.length; i+=1) {
   document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
  }
 }
}
var preloadFlag = false;

function preloadImages() {
 if (document.images) {
  preloadFlag = true;
 }
}

function swapTo(section){
//alert ('images/'+section+'_sel.jpg');
 changeImages(section,'images/'+section+'_sel.jpg');
 }
 
function swapBack(section){
	//alert ('images/'+section+'_sel.jpg');
 changeImages(section,'images/'+section+'.jpg');
}


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];}}
}