function resizeRatio(ratio) {

	//ratio should be width to height ratio. eg 4/3 - 1.333

	self.moveTo(0,0);
	self.resizeTo(screen.availWidth,screen.availHeight);
	var ns4 = (document.layers)? true:false;
	var ie4 = (document.all)? true:false;

	var winW = (ie4)?  document.body.offsetWidth : window.innerWidth ;
	var winH = (ie4)?  document.body.offsetHeight : window.innerHeight;
	//alert(window.innerWidth+","+document.body.offsetWidth+","+winW+","+winH);

	if(winW!=0 && winH!=0 && winW/winH>ratio){
		self.resizeTo((screen.availWidth-winW)+(winH*ratio),screen.availHeight);	
	}
	else if (winW!=0 && winH!=0 && winW/winH<ratio){
		self.resizeTo(screen.availWidth,(screen.availHeight-winH)+(winW*(1/ratio)));
	}
}