function height(){
	var bannerheight = 159;
	var menuheight = 30;
	var minheight = 598;
	var windowheight = window.innerHeight;
	if(!windowheight){
		windowheight = document.body.clientHeight;
	}
	else {
		windowheight = windowheight - 15;
	}
	if(windowheight <= minheight)
	{
		windowheight = minheight;
	}
	var content = document.getElementById('content');
	windowheight = windowheight - menuheight - bannerheight;
	content.style.height = windowheight + "px";
}