how to add querystring at Link Url

how to add querystring at Link Url

Hello,

As subject, how to add ?x=z (querystring) at the back of the Link Url, only adding a href under id "menu"?

example:
  1. <div id="menu">     
  2. <a href="aaa.html">aaa</a> | <a href="bbb.html?a=b">bbb</a> | <a href="ccc.html">ccc</a>
  3. </div>
  4. <a href="kkk.html">kkk</a>

result:
  1. <div id="menu">
  2.       <a href="aaa.html?x=z">aaa</a> | <a href="bbb.html?a=b&x=z">bbb</a> | <a href="ccc.html?x=z">ccc</a>
  3. </div>
  4. <a href="kkk.html">kkk</a>

those link already added ?x=z, only second link is &x=z, because second link already have quesrystring before adding. kkk do nothing

Thanks~