function Resize(){ 

	var frame   = document.getElementById("conteudo"); 
	var scnHei  = self.innerHeight;

	if (document.documentElement && document.documentElement.clientHeight)
		scnHei  = document.documentElement.clientHeight;
	else if (document.body.clientHeight)
		scnHei  = document.body.clientHeight;
				
	if ( frame.offsetHeight < scnHei )
		frame.style.height = (scnHei - 50) + "px"; 

}