function Print_Window(docid)
{ 
	var width   = 640;
	var height  = 480;
	if (parseInt(navigator.appVersion) >= 4)
	{
		var top     = (screen.availHeight - height) / 2;
		var screenY = top;
		var left    = (screen.availWidth - width) / 2;
		var screenX = left;
		var BrowseWindow = window.open("http://"+this.location.host+this.location.pathname+"?p_action=print&p_docid=" + docid, "Print", "width="+width+",height="+height+",screenX="+screenX+",screenY="+screenY+",top="+top+",left="+left+",toolbar,status,menubar,scrollbars,resizable");
	}
	else
		{var BrowseWindow = window.open("http://"+this.location.host+this.location.pathname+"?p_action=print&p_docid=" + docid, "Print", "width="+width+",height="+height+",toolbar,status,menubar,scrollbars,resizable");}
}