function pop_scroll_resizable(url, name, width, height) {
    var winLeft = (screen.width - width) / 2 ;
    var winTop = (screen.height - height) / 2 ;
    param = 'height=' + height + ', width=' + width + ', top=' + winTop + ', left=' + winLeft + ', scrollbars=1, resizable=1'  ;
	win = window.open(url, name, param) ;
  	win.window.focus() ;
}