function initAjaxProgress()
{var pageHeight=(document.documentElement&&document.documentElement.scrollHeight)?document.documentElement.scrollHeight:(document.body.scrollHeight>document.body.offsetHeight)?document.body.scrollHeight:document.body.offsetHeight;var bg=document.getElementById('ajaxProgressBg');bg.style.height=(pageHeight+ 1000)+'px';reposAjaxProgress();window.onscroll=reposAjaxProgress;}
function reposAjaxProgress()
{var div=document.getElementById('ajaxProgress');var st=document.body.scrollTop;if(st==0){if(window.pageYOffset)st=window.pageYOffset;else st=(document.body.parentElement)?document.body.parentElement.scrollTop:0;}
div.style.top=150+ st+"px";}