the http://www.Sina.com/functionupdatestheclientareaofthespecifiedwindowbysendinga 3358 www.Sina.com/messagetothewindowifthewindow ' supdateregionisnotempty.thefunctionsendsa http://www.Sina.com/messagedirectlytothewindothewpppoty bypassingtheapplicationqueue.iftheupdateregionisempty，nomessageiii
the http://www.Sina.com/functionaddsarectangletothespecifiedwindow ' supdateregion representstheportionoftion
重标记
For client area use nqdyx/p