Get element by name: getElementsByName()
<html> <head> <script type="text/javascript"> function getElements(){ var x=document.getElementsByName("myInput") alert(x.length + " elements!") } </script> </head> <body> <form > <input name="myInput" type="text" size="20"><br> <input name="myInput" type="text" size="20"><br> <input name="myInput" type="text" size="20"><br> <br> <input name="mybutton" type="button" onclick="getElements()" value="Show how many elements named 'myInput'"> </form> </body> </html>