var rev = false;
var rgb;
function loadMirrorXMLDoc(pic,sel,sessid) {
   if (sel.options[sel.selectedIndex].text == 'ja') {
     rev = true;
   } else {
     rev = false;
   }  
   var url="productsimage.php?pic="+pic+"&reverse="+rev+"&osCsid="+sessid;
   document.getElementById('prodimg').innerHTML = "<img border='0' vspace='5' hspace='5' src="+url+"/>";
   document.getElementById('prodaction').onclick = null;
   document.getElementById('prodaction').removeAttribute("href");
   document.getElementById('enlarge').innerHTML = "";
   backToTop(300);
} 

var t;
function backToTop(toX) {
  t = setTimeout('goBackToTop()', 1);
}
function goBackToTop() {
    if (document.documentElement.scrollTop > 300) {
        window.scrollBy(0,-20);
        goBackToTop();
    } else {
      clearTimeout(t);
    }
}