<style>
#texttime{
color:#ff0066;
font-size:15px;
}
</style>
<script type="text/javascript">
var startTime=new Date();
function currentTime(){
var a=Math.floor((new Date()-startTime)/100)/10;
if (a%1==0) a+=".0";
document.getElementById("endTime").innerHTML=a;
}
window.onload=function(){
clearTimeout(loopTime);
}
</script>
<script type="text/javascript">
document.write('<span id="texttime">Thời gian load trang: <span id="endTime">0.0</span> giây</span> ');
var loopTime=setInterval("currentTime()",100);
</script>