function uncenterdivw()
{
var width = document.body.clientWidth;

if(width<900)
{
document.getElementById("alldiv").style.left="0px";
document.getElementById("alldiv").style.marginLeft="0px";
}
else
{
document.getElementById("alldiv").style.left="50%";
document.getElementById("alldiv").style.marginLeft="-450px";
}
}

function uncenterdivh()
{
var height = document.body.clientHeight;

if (height<562)
{
document.getElementById("alldiv").style.top="0px";
document.getElementById("alldiv").style.marginTop="0px";
//document.getElementById("alldiv").style.marginLeft="0px";
}

if(height>562)
{
document.getElementById("alldiv").style.top="50%";
document.getElementById("alldiv").style.marginTop="-281px";
}

}