Drop Down Menu help with FireFox

[BcSurvivor08]

I've used your dropdownmenu.css and dropdownmenu.js for years and I love it. One problem I am having now is that the drop menu defaults to the far left of the menu bar only in FireFox. It works perfectly in IE7-9, Safari, Opera, Chrome, Android, Blackberry and iphone. .....

Please look http://www.amerimedems.com

The css code:

    #dropmenudiv{
    position:absolute;
	overflow:hidden;
	border-bottom:1px dotted #000;
    font-family:arial;
	font-size: 14px;
    line-height:16px;
   
	-moz-border-radius: 10px;
-webkit-border-radius: 10px;
border-radius: 10px;
/**SHADOW**/
-moz-box-shadow: 2px 3px 4px #000000;
-webkit-box-shadow: 2px 3px 4px #000000;
box-shadow: 2px 3px 4px #000000; 	
    }

    #dropmenudiv a{
    width: 100%;
    display: block;
	text-indent: 3px;
    border-bottom: 1px dotted #000;
    padding: 2px 0;
    text-decoration: none;
    color:white;
    }


    #dropmenudiv a:hover
	{ /*hover background color*/
    color: #c80f12;
	    }

And the js file is here http://www.amerimedems.com/scripts/dropdownmenu.js

Your help is greatly appreciated! I wouldnt really care, except 58% of visitors are using FireFox..

[BcSurvivor08]

Help?