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            $.ajax({
                type: "POST",   //·ÃÎÊWebServiceʹÓÃPost·½Ê½ÇëÇó
                contentType: "application/json",
                url: "UpdateNews.aspx/InsertLocalImages",
                data: "{dirName:'" + UploadPath + "',ImagePath:'" + imgpath + "',ImageName:'" + imgname + "',filetitle:'" + title + "',filedate:'" + date + "',fileexp:'" + exp + "',filekeyw:'" + keyw + "',iscovr:'" + iscovr + "'}",
                dataType: 'json',
                success: function(result) {//»Øµ÷º¯Êý£¬result£¬·µ»ØÖµ
                    if (result.d != "") {
                        //ÔÚ¹â±ê´¦²åÈëͼƬ
                        InsertImage(result.d, id);
                        Dialog.alert("±¾µØͼƬÈë¿â³É¹¦", function() { Dialog.close(); });
                    }
                    else {
      &


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private void Button1_Click( object sender, System.EventArgs e )   
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ajax XMLHttpRequest.readyStateÖÐStateµÄ"S"Òª´óд

<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>xmlhttprequest ajax demo</title>
<mce:script type ="text/javascript" language ="javascript" ><!--
var req; //¶¨Òå±äÁ¿£¬ÓÃÀ´´´½¨xmlhttprequest¶ÔÏó
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