javascript 调用 WebService的方法[2]

COLOR: #800000">meta name="CODE_LANGUAGE" Content="C#">
    <meta name=vs_defaultClientScript content="JavaScript">
    <meta name=vs_targetSchema content="http://schemas.microsoft.com/intellisense/ie5">
    <script language="javascript">
    function doMul(){
        service.useService("http://localhost/WebServiceTest/Multi.asmx?wsdl","DoMultiService");
        var parm1 = Form1.all.mul1.value;
        var parm2 = Form1.all.mul2.value;
        service.DoMultiService.callService(callback,"DoMulti",parm1,parm2);        
    }
    
    function callback(res){
        if (!res.error)
            Form1.all.retValue.value=res.value;
        else
            Form1.all.retValue.value='ERR';
    }
   </script>
</HEAD>