var ns4up = (document.layers) ? 1 : 0;
var ie4up = (document.all) ? 1 : 0;
var w = 800
if (ns4up) {w = self.innerWidth;}
if (ie4up) {w = document.body.clientWidth;}
var h = 600
if (ns4up) {h = self.innerHeight;}
if (ie4up) {h = document.body.clientHeight;}