function correctPNG() // correctly handle PNG transparency in Win IE 5.5 & 6.
{
   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 simplePreload()
{ 
  var args = simplePreload.arguments;
  document.imageArray = new Array(args.length);
  for(var i=0; i<args.length; i++)
  {
    document.imageArray[i] = new Image;
    document.imageArray[i].src = args[i];
  }
}

function addLoadEvent(func) {
	var oldonload = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = func;
	}
	else {
		window.onload = function() {
			oldonload();
			func();
		}
	}
}

function attachHoverEvents() {
	
  Event.observe('productsresizable', 'mouseover', function() {
    $('productsresizable').style.background='url(\'templates/aqua/images/nav_yellow_middle_hover.gif\')';
    $('productstop').src='templates/aqua/images/nav_yellow_top_hover.gif';
    $('productsbottom').src='templates/aqua/images/nav_yellow_bottom_hover.gif';
  });
  Event.observe('productsresizable', 'mouseout', function() {
    $('productsresizable').style.background='url(\'templates/aqua/images/nav_yellow_middle.gif\')';
    $('productstop').src='templates/aqua/images/nav_yellow_top.gif';
    $('productsbottom').src='templates/aqua/images/nav_yellow_bottom.gif';
  });

  Event.observe('newsandpress', 'mouseover', function() {
    $('newsandpress').style.background='url(\'templates/aqua/images/nav_lightblue_middle_hover.gif\')';
    $('newsandpresstop').src='templates/aqua/images/nav_lightblue_top_hover.gif';
    $('newsandpressbottom').src='templates/aqua/images/nav_lightblue_bottom_hover.gif';
  });
  Event.observe('newsandpress', 'mouseout', function() {
    $('newsandpress').style.background='url(\'templates/aqua/images/nav_lightblue_middle.gif\')';
    $('newsandpresstop').src='templates/aqua/images/nav_lightblue_top.gif';
    $('newsandpressbottom').src='templates/aqua/images/nav_lightblue_bottom.gif';
  });
  
  Event.observe('customerservice', 'mouseover', function() {
    $('customerservice').style.background='url(\'templates/aqua/images/nav_orange_middle_hover.gif\')';
    $('customerservicetop').src='templates/aqua/images/nav_orange_top_hover.gif';
    $('customerservicebottom').src='templates/aqua/images/nav_orange_bottom_hover.gif';
  });
  Event.observe('customerservice', 'mouseout', function() {
    $('customerservice').style.background='url(\'templates/aqua/images/nav_orange_middle.gif\')';
    $('customerservicetop').src='templates/aqua/images/nav_orange_top.gif';
    $('customerservicebottom').src='templates/aqua/images/nav_orange_bottom.gif';
  });

  Event.observe('shopnow', 'mouseover', function() {
    $('shopnow').style.background='url(\'templates/aqua/images/nav_pink_middle_hover.gif\')';
    $('shopnowtop').src='templates/aqua/images/nav_pink_top_hover.gif';
    $('shopnowbottom').src='templates/aqua/images/nav_pink_bottom_hover.gif';
  });
  Event.observe('shopnow', 'mouseout', function() {
    $('shopnow').style.background='url(\'templates/aqua/images/nav_pink_middle.gif\')';
    $('shopnowtop').src='templates/aqua/images/nav_pink_top.gif';
    $('shopnowbottom').src='templates/aqua/images/nav_pink_bottom.gif';
  });

  Event.observe('wheretobuy', 'mouseover', function() {
    $('wheretobuy').style.background='url(\'templates/aqua/images/nav_green_middle_hover.gif\')';
    $('wheretobuytop').src='templates/aqua/images/nav_green_top_hover.gif';
    $('wheretobuybottom').src='templates/aqua/images/nav_green_bottom_hover.gif';
  });
  Event.observe('wheretobuy', 'mouseout', function() {
    $('wheretobuy').style.background='url(\'templates/aqua/images/nav_green_middle.gif\')';
    $('wheretobuytop').src='templates/aqua/images/nav_green_top.gif';
    $('wheretobuybottom').src='templates/aqua/images/nav_green_bottom.gif';
  });

  Event.observe('aboutus', 'mouseover', function() {
    $('aboutus').style.background='url(\'templates/aqua/images/nav_purple_middle_hover.gif\')';
    $('aboutustop').src='templates/aqua/images/nav_purple_top_hover.gif';
    $('aboutusbottom').src='templates/aqua/images/nav_purple_bottom_hover.gif';
  });
  Event.observe('aboutus', 'mouseout', function() {
    $('aboutus').style.background='url(\'templates/aqua/images/nav_purple_middle.gif\')';
    $('aboutustop').src='templates/aqua/images/nav_purple_top.gif';
    $('aboutusbottom').src='templates/aqua/images/nav_purple_bottom.gif';
  });
}

function preLoadImages() {
  simplePreload('nav_lightblue_middle_hover', 'nav_lightblue_top_hover.gif', 'nav_lightblue_bottom_hover.gif', 'nav_orange_top_hover.gif', 'nav_orange_middle_hover.gif', 'nav_orange_bottom_hover.gif', 'nav_pink_top_hover.gif', 'nav_pink_middle_hover.gif', 'nav_pink_bottom_hover.gif', 'nav_yellow_top_hover.gif', 'nav_yellow_middle_hover.gif', 'nav_yellow_bottom_hover.gif', 'nav_green_top_hover.gif', 'nav_green_middle_hover.gif', 'nav_green_bottom_hover.gif', 'nav_purple_top_hover.gif', 'nav_purple_middle_hover.gif', 'nav_purple_bottom_hover.gif');  
}

addLoadEvent(attachHoverEvents);
//addLoadEvent(preLoadImages);
//addLoadEvent(correctPNG);