function NewWindow(mypage, myname, w, h, scroll) 
{
    var winl = (screen.width - w) / 2;
    var wint = (screen.height - h) / 2;
    
	winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',resizable'
	
	window.opener = this.window;
	
	window.open(mypage, myname, winprops);  
}