function center() {
var w = 900;
var s = 125;
var px = "px";
if (self.innerWidth)
{
	frameWidth = self.innerWidth;
	frameHeight = self.innerHeight;
}
else if (document.documentElement && document.documentElement.clientWidth)
{
	frameWidth = document.documentElement.clientWidth;
	frameHeight = document.documentElement.clientHeight;
}
else if (document.body)
{
	frameWidth = document.body.clientWidth;
	frameHeight = document.body.clientHeight;
}
var margin = (frameWidth-w)/2;
if (margin > 0)
{
document.getElementById('main').style.left= (margin+s) + px;
document.getElementById('main').style.right= margin + px;
document.getElementById('top').style.left= margin + px;
document.getElementById('top').style.right= margin + px;
document.getElementById('nav').style.left= margin + px;
document.getElementById('nav').style.right= margin + px;
document.getElementById('logo').style.left= margin + px;
document.getElementById('side').style.left= margin + px;
document.getElementById('footer').style.left= margin + px;
document.getElementById('footer').style.right= margin + px;

}
else
{
document.getElementById('main').style.left= s + px;
document.getElementById('main').style.right= '';
document.getElementById('main').style.width= (w-s) + px;
document.getElementById('top').style.left= 0;
document.getElementById('top').style.right= '';
document.getElementById('top').style.width= w + px;
document.getElementById('nav').style.left= 0;
document.getElementById('nav').style.right= '';
document.getElementById('nav').style.width= w + px;
document.getElementById('logo').style.left= 0;
document.getElementById('side').style.left= 0;
document.getElementById('footer').style.left= 0;
document.getElementById('footer').style.right= '';
document.getElementById('footer').style.width= w + px;
}
}