function custWindow(doc,w,h,align,valign,scroll) {
	if (custWindow.arguments.length < 6) {
		var scroll = 'no'
		}
	if (custWindow.arguments.length < 4) {
		var align = 'c'
		var valign = 'm'
		}
	topPos=0
	leftPos=0
	if (screen) {
		if (align == 'c') {
			leftPos = screen.width/2 - w/2
			} else {
			if (align == 'r') {
				leftPos = screen.width - w - 12
				}
			}
		if (valign == 'm') {
			topPos = screen.height/2 - h/2
			} else {
			if (valign == 'b') {
				topPos = screen.height - h - 5
					}
				}
			}
		custWin = window.open (doc,'custWin','toolbar=no,location=no,scrollbars='+scroll+',resizable=yes,width='+w+',height='+h+',left='+leftPos+',top='+topPos+'')
		custWin.document.close()
		custWin.focus()	
	}