function view(u,w,h) {
	winw = (screen.width < w) ? screen.width : w;
	winh = (screen.height < h) ? screen.height : h;
	xoff = (screen.width/2)-(winw/2);
	yoff = (screen.height/2)-(winh/2)-150;
	newWin="scrollbars=yes,menubar=no,resizable=yes,width="+winw+",height="+winh+",screenX="+xoff+",screenY="+yoff+",top="+yoff+",left="+xoff;
	myWin=window.open(u,"Tutorial",newWin);
	myWin.resizeTo(winw,winh);
	myWin.focus();
}