jQuery提交表单没反应，求帮助
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><title></title><link href="../css/all.css" rel="stylesheet" type="text/css" /><link href="css/style.css" rel="stylesheet" type="text/css" /> <script src="../js/jquery-1.3.2.min.js" type="text/javascript"></script><script src="../js/core/base.js" type="text/javascript"></script><script src="../js/plugins/ligerForm.js" type="text/javascript"></script><script src="../js/plugins/ligerDateEditor.js" type="text/javascript"></script><script src="../js/plugins/ligerComboBox.js" type="text/javascript"></script><script src="../js/plugins/ligerCheckBox.js" type="text/javascript"></script><script src="../js/plugins/ligerButton.js" type="text/javascript"></script><script src="../js/plugins/ligerDialog.js" type="text/javascript"></script><script src="../js/plugins/ligerRadio.js" type="text/javascript"></script><script src="../js/plugins/ligerSpinner.js" type="text/javascript"></script><script src="../js/plugins/ligerTextBox.js" type="text/javascript"></script> <script src="../js/plugins/ligerTip.js" type="text/javascript"></script><script src="js/jquery.metadata.js" type="text/javascript"></script><style type="text/css"> body{ font-size:12px;} .l-table-edit {} .l-table-edit-td{ padding:6px;} .l-button-submit,.l-button-test{width:80px; float:left; margin-left:10px; padding-bottom:2px;}</style><script type="text/javascript">$(function (){ $.metadata.setType("attr", "validate"); $("form").ligerForm();});function validata(){ reg=/^[0-9a-zA-Z\u4E00-\u9FA5]+$/; if(!reg.test($("#MenuName").val())){ alert("栏目名称填写不正确！"); return false; }else{ return true; } $("form").submit();}--></script></head><body style="padding:10px"><form name="form1" method="post" action="menu_add.asp" id="form1"><div></div><table width="500" cellpadding="0" cellspacing="0" class="l-table-edit" > <tr> <td width="70" align="left" class="l-table-edit-td">栏目名称：</td> <td align="left" class="l-table-edit-td"><input name="MenuName" type="text" id="MenuName" ltype="text"/></td> <td align="left"></td> </tr> <tr> <td align="left" class="l-table-edit-td">所属栏目：</td> <td align="left" class="l-table-edit-td"> <select name="ParentID" id="ParentID" ltype="select"> <option value="0">一级栏目</option> </select> </td> </tr> </table> <br /><input type="Button" value="提交" id="Button1" class="l-button l-button-submit" onclick="validata()"/> </form></body></html>