function fixHeight() {
	var wrapper = document.getElementById("wrapper");
	
	if (wrapper) {
		var page_height = pageHeight();
		if (page_height>771) {
			wrapper.style.height = page_height+"px";
		}
	}
}

function pageHeight() {return window.innerHeight != null? window.innerHeight: document.documentElement && document.documentElement.clientHeight ? document.documentElement.clientHeight:document.body != null? document.body.clientHeight:null;}