// preload level 1 menu buttons
var btnLevel1 = new Array();
btnLevel1 = ["","about","news","consumer-tips","links","efficiency-programs","training"];
for (i=0;i<btnLevel1.length;i++) { 
	eval("menu"+i+"on = new Image();"); eval("menu"+i+"off = new Image();");
	eval("menu"+(i)+"on.src = \"" + folderLevel + "img/buttons/l1-"+btnLevel1[i]+"-r.gif\";");
	eval("menu"+(i)+"off.src = \"" + folderLevel + "img/buttons/l1-"+btnLevel1[i]+"-0.gif\";");
}

// image-swapping functions
function imgOn(imgName) {
  if (document.getElementById) {
    document.getElementById(imgName).src = eval(imgName + "on.src");
  }
}
 
function imgOff(imgName) {
  if (document.getElementById) {
    document.getElementById(imgName).src = eval(imgName + "off.src");
  }
}