JavaScript Tutorial/DOM Node/getElementById
Get element from a document by id
<source lang="javascript">
<html> <head> <title>New Page 1</title> <script language="JavaScript" type = "text/javascript">
</script> </head> <body> <form name="textfield">
<input type="text" name="T1" size="20" id="testinput"> <input type="button" value="Click Here" name="B1" onClick="Test()"></p>
</form> </body> </html></source>
