alert box text to be bold and red color

[prichardson]

How can I make my alert box message appear in bold red colour? Here is my javascript for the alert box:

<script language="JavaScript"><!--function confirmSubmit(){var agree=confirm("Are you sure you wish to DELETE this category AND ALL THE BLOG POSTS in this category?");if (agree)	return true;else	return false;}//--></script>

[aspnetguy]

You cannot change the way the alert, confirm, or prompt boxes look.You will have to write you own code to simulate them if you want to customize the look.

[pulpfiction]

Customized alert message...http://slayeroffice.com/code/custom_alert/