JQuery中Ajax的Post提交在IE下中文乱码的解决方法

var regid = $('#oregion').combobox('getValue');
//var sname = $('#sname').val();
var sname = encodeURI($('#sname').val(),"UTF-8");
if(regid!=""regid!='undefined'){
$.ajax({
async: true,
type : "POST",
dataType : "json",
url : "%=request.getContextPath() %>/secretary/isHasUser.do?regid="+regid+"sname="+sname,
success : function(data) {
if(data.mes!=""data.mes!=null){
$.messager.alert('Warning',data.mes);
return false;
}
}
});
}
}