Jquery Function for validation -

i validate textbox accepts academic year input in format yyyy-yy. how write regular expression validation/ jquery client validation function this?

function parsedate() {     alert("yeah");     var sacadyearname = document             .getelementbyid('<%= txtacademicyearname.clientid%>');     var m = sacadyearname.match(/^(\d{1,2})\/(\d{1,2})\/(\d{4})$/);     return (m) ? new date(m[3], m[2] - 1, m[1]) : null; } 

try code

 <input id="txtdob" type="text"/>   <asp:regularexpressionvalidator id="regularexpressionvalidator4" runat="server" forecolor="red"                         controltovalidate="txtdob" validationgroup="check" errormessage="date format in yyyy-yy"                         validationexpression="^([0-9]{4})[.--]+([0-9]{2})$"></asp:regularexpressionvalidator> 

eidt:

just change , try it

<input id="txtdob" runat="server" type="text" />              <asp:regularexpressionvalidator id="regularexpressionvalidator4" runat="server" forecolor="red"                 controltovalidate="txtdob" validationgroup="check" errormessage="date format in yyyy-yy"                 validationexpression="^([0-9]{4})[./-]+([0-9]{2})$"></asp:regularexpressionvalidator>             <asp:button runat="server" validationgroup="check" />         </div> 

or add line code!

var m = sacadyearname.match(^([0-9]{4})[./-]+([0-9]{2})$); 

it's validate :

2013/14 or 2013-14