发布三个ajax相关的函数，包括无刷新提交表单等

ment_value=e.options[e.selectedIndex].value;
            }
            else if (e.type==''checkbox'' || e.type==''radio'')
            {
                if (e.checked==false)
                {
                    break;    
                }
                element_value=e.value;
            }
            else
            {
                element_value=e.value;
            }
            query_string+=and+e.name+''=''+element_value.replace(/\&/g,"%26");
            and="&"
        }

    }
    return query_string;
}
//@desc    no refresh submit(ajax) by using ajaxLoadPage and formToRequestString
//@param   form_obj          the form object
//@param   container          the container object,the loaded page will display in container.innerHTML
//@usage   ajaxFormSubmit(document.form1,document.getElementById(''my_home''))
//@author  SurfChen <surfchen@gmail.com>
//@url     http://www.surfchen.org/
//@license http://www.gnu.org/licenses/gpl.html GPL
function ajaxFormSubmit(form_obj,container)
{
    ajaxLoadPage(form_obj.getAttributeNode("action").value,formToRequestString(form_obj),form_obj.method,container)
}