disabling required validator and how asp:panel

disabling required validator and how asp:panel

I have linkbutton on a click event I would like to show asp:panel (disable required validators). here is my code. what's incorrect?
<
script type ="text/javascript">

$(

 "#<%= lnkbAddNewGroup.ClientID %> " )

.live(

 "click" , function (event) {

alert(

 'click' );

disableAllValidators();

 return false ;

})

 function disableAllValidators() {

 if (( typeof (Page_Validators) != 'undefined' ) && (Page_Validators != null )) {

 for ( var i = 0; i < Page_Validators.length; i++) {

ValidatorEnable(Page_Validators[i],

false );

}

}

}....

< asp : Panel runat ="server" ID ="pnlUpdate" Visible ="false">