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JS load read content and show and hide Div example

Source: Internet
Author: User
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  This article mainly introduces JS load read content and display and hide div method, need friends can refer to the following

  Code as follows: <head>  <script>  function Check () {    var num = document.getElementById (" Choose ") .value;  alert (num);  if (num==" 4 ") {  document.getElementById (" show "). Style.display=" Block " ; }else{  document.getElementById ("show"). style.display= "None"; } }  </script>   </head>  <body onload= "check ()" >      <select id= "Choose" onchange= "Check ()" >  <option value= "1" > First </option>  <option value= "2" > Second </option>  < Option value= "3" > Third </option>  <option value= "4" > Fourth </option>  </select>      <div id= "show" style= "Display:none;" >  <table>  <tr>  <td> There are people who are in the </td>  <td>, the day is not negative </td>   </tr>  </table>  </div>  </body>     

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