function hiderekl(e)
{
document.getElementById(e).style.visibility = "hidden";
}
function MoveCenterScreen(objID) 
 { 
 var innerHeight_ = window.innerHeight ? window.innerHeight : document.documentElement.offsetHeight; 
 var obj = document.getElementById(objID); 
 obj.style.left = ( document.body.clientWidth / 2 - obj.clientWidth / 2  + document.body.scrollLeft) + 'px'; 
 obj.style.top = ( document.documentElement.scrollTop + innerHeight_ / 2 - obj.clientHeight / 2 + document.body.scrollTop) + 'px'; 
 obj.style.visibility = "visible";
 }