Anchor without a Href

[eluser]Unknown[/eluser]
Hello,

I have below anchor tag and I want to use anchor() function from url helper. Here I don't have href attribute, I want to use with onClick function, it is working fine

Code:

<a style="cursor:pointer;">&lt;?php echo $advertiser['companyName']; ?&gt;</a>

Now I am converting above code using anchor() function, it want work

Code:

<?php echo anchor('',$advertiser['companyName'],array('onclick'=>"expandArea('$rowcount')",'style'=>'cursor:pointer;')) ?>

OR

Code:

<?php echo anchor('#',$advertiser['companyName'],array('onclick'=>"expandArea('$rowcount')",'style'=>'cursor:pointer;')) ?>

Can I have help on this? Thanks in advance.

---Amit