Validation is fired on click of show(linkbutton)

Hi !
when ever i use to click the linkbutton(Show) the validation is fired in all other controls and doesnt allow me to view the data. Any solution please?

inline code:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Career.aspx.cs" Inherits="Career" %>
<!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 runat="server"> <title></title> <link rel="stylesheet" type="text/css" href="style.css" /> <script type="text/javascript" src="js/jquery.min.js"></script> <script type="text/javascript" src="js/image_slide.js"></script> <style type="text/css"> . ...