<html> <head> <script type="text/javascript"> function makeDisable() { var x=document.getElementById("mySelect") x.disabled=true } function makeEnable() { var x=document.getElementById("mySelect") x.disabled=false } </script> </head>
<html> <head> <script type="text/javascript"> function formAction() { var x=document.getElementById("mySelect") x.multiple=true } </script> </head>
<body> <p> Before you click on the "Select multiple" button, try to select more than one option (by holding down the shift or Ctrl key). Click on the "Select multiple" button and try again.