block comment js

1<script type="text/javascript">
2<!--
3document.write("I have multi-line comments!");
4/*document.write("You can't see this!");
5document.write("You can't see this!");
6document.write("You can't see this!");
7document.write("You can't see this!");
8document.write("You can't see this!");
9document.write("You can't see this!");
10document.write("You can't see this!");*/
11//-->
12</script>
13
14

1New empty HTML comment wherever:  Shift + Alt + A

1/* this is a block 
2comment in javascript */