function getCookie(name) {
var cookie = " " + document.cookie;
var search = " " + name + "=";
var setStr = null;
var offset = 0;
var end = 0;
if (cookie.length > 0) {
offset = cookie.indexOf(search);
if (offset != -1) {
offset += search.length;
end = cookie.indexOf(";", offset)
if (end == -1) {
end = cookie.length;
}
setStr = unescape(cookie.substring(offset, end));
}
}
return(setStr);
}



function end_time()
{
 
var oDate= new Date();
var nach=oDate.getTime();
document.cookie="nachalo="+nach;

 
}

function start_time()
{
var oDate= new Date();
var konec=oDate.getTime();

var beg=getCookie("nachalo");



var del=(konec-beg)/1000.0;

var ld_txt=document.getElementById("mytime_txt");

var ld_tm=document.getElementById("mytime");

ld_txt.innerHTML="Время загрузки web страницы";
ld_tm.innerHTML=del;




}