function OpenPopup (page, name, width, height, resizable) {
	var winPosX = (screen.availWidth/2) - width/2;
    var winPosY = (screen.availHeight/2) - height/2;

	winPopup = window.open(page, name,   "location=no" 
									   + ",statusbar=no"
									   + ",menubar=no"
									   + (resizable?",resizable=yes":" ,resizable=no") 
									   + ",scrollbars=yes" 
									   + ",width=" + width 
									   + ",height=" + height 
									   + ",left=" + winPosX 
									   + ",top=" + winPosY);

    //winPopup.focus();

	return winPopup;
}