如何在javascript调用WEBSERVICE的时候向WS传参

Question

以下为典型的调用，可是我现在需要调用一个有参数的函数  ，不知道该如何做  请高手指教public string GetMessage()
{
SqlConnection conn=new SqlConnection("user=sa;password=123 ;database=northwind;server=SERVER;Connect Timeout=30");
string select="select customerid from customers";
DataSet ds=new DataSet();
SqlDataAdapter adapter=new SqlDataAdapter(select,conn);
adapter.Fill(ds);
return ds.GetXml();   
}
<SCRIPT ID="clientEventHandlersJS" LANGUAGE="javascript">
function getdata()
{
var index=0;


div1.innerHtml ="";
docSubmit = new ActiveXObject("Microsoft.XMLDOM");
docSubmit.async = false;
docSubmit.load("http://localhost/sqlServer/Service1.asmx/GetMessage");
docSubmit.loadXML(docSubmit.xml.replace(/&lt;/g,"<").replace(/&gt;/g,">"));

var s="";

nodeList=docSubmit.documentElement.getElementsByTagName("Table");

  for (i=0;i<nodeList.length;i++)
{
s=s + "<div style=\"WIDTH:490px;\" class=\"gotTitle\"  >&nbsp;" + nodeList(i).selectSingleNode("customerid").text + "</div>";
}
div1.innerHTML=s;
div1.style.visibility="visible";                
}
</script>