// open a new Window:
function newWin(url,windowname,window_apperance,bReturnWindowHandle) {
	if (url == null) url = '';
	if (windowname == null) windowname = '_blank';
	if (window_apperance == null || window_apperance == '') window_apperance = 'left=10,top=10,scrollbars=yes,menubar=no,resizable=yes,toolbar=no,location=no';
	newwindow = open(url,windowname,window_apperance);
	newwindow = newwindow.focus();
	if (bReturnWindowHandle) return newwindow;
}
// show the scroll up arrow
function showUp(){
	var crossobj=document.getElementById? document.getElementById("scrolling") : document.all.scrolling
	var contentheight=crossobj.offsetHeight;
	if(contentheight > 276){
		var up = document.getElementById("up");
		up.style.visibility = "visible";
		up.style.display = "block";
	}
}