function resizeBody() {

	if (parseInt(navigator.appVersion)>3) {
		if (navigator.appName=="Netscape") {
			winW = window.innerWidth;
			winH = window.innerHeight;
			}
		if (navigator.appName.indexOf("Microsoft")!=-1) {
			winW = document.body.offsetWidth;
			winH = document.body.offsetHeight;
	 		}
		}
	if (winH > 50) {
		newHeight = winH-28;
		} else {
		newHeight = 50
		}

	document.getElementById('mainBody').style.height = newHeight;
	}

function toTop() {
	document.getElementById('mainBody').scrollTop = 0
	}