function correctPNG() {
   var arVersion = navigator.appVersion.split("MSIE");
   var version = parseFloat(arVersion[1]);
   if ((version >= 5.5) && (document.body.filters)){
	  for(var i=0; i<document.images.length; i++){
		 var img = document.images[i];
		 var imgName = img.src.toUpperCase();
		 if (imgName.substring(imgName.length-3, imgName.length) == "PNG") {
			var imgID = (img.id) ? "id='" + img.id + "' " : "";
			var imgClass = (img.className) ? "class='" + img.className + "' " : "";
			var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' ";
			var imgStyle = "display:inline-block;" + img.style.cssText;
			if (img.align == "left") imgStyle = "float:left;" + imgStyle;
			if (img.align == "right") imgStyle = "float:right;" + imgStyle;
			if (img.parentElement.href) imgStyle = "cursor:hand;" + imgStyle;
			var strNewHTML = "<span " + imgID + imgClass + imgTitle
			+ " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
			+ "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
			+ "(src=\'" + img.src + "\', sizingMethod='scale');\"></span>";
			img.outerHTML = strNewHTML;
			i = i-1;
		 }
	  }
   }
}

function swap(el,toggle){
	var e;
	e = document.getElementById('img' + el);
	if (toggle == 1){ e.src = 'images/nav_' + el + '-on.png'; }else{ e.src = 'images/nav_' + el + '.png'; }
	//alert(el + ' src=' + e.src);
}
function swap2(el,toggle){
	var thisEl = "img" + el;
	doOn = (toggle == 1) ? "-on" : "";
	document.images[thisEl].src = "images/nav2_" + el + doOn + ".png";
}

function giveFocusTo(el){
	e = document.getElementById(el);
	e.focus();
}

function preloadImages(imgArrayStr){
	arr = imgArrayStr.split(",");
}

function onDocumentLoad(){
	correctPNG();
}