Chrome dropmenus moves when many objects

[Spritezero]

1) Script Title:
Chrome CSS Drop Down Menu (v2.5)

2) Script URL (on DD):
http://www.dynamicdrive.com/dynamici...rome/index.htm

3) Describe problem:
I noticed that, when filling a dropdown with large numbers of objects thus extending the webpage height, the dropdownlist will move to the top of the page. I tried to prevent this by adding margin-top like this:

.dropmenudiv{
position:absolute;
top: 0;
border: 1px solid #BBB; /*THEME CHANGE HERE*/
border-bottom-width: 0;
font:normal 10px Verdana;
line-height:13px;
z-index:100;
background-color: white;
width: 200px;
visibility: hidden;
margin-top: 74px;
}

The with that is that the smaller dropdown menus ends up 74 pixels below where they should be. Are there any easy fix for this?

[Spritezero]

Noone has any idea how to correct this?
Any help would be deeply appreciated!

[ddadmin]

Inside the .js file, try finding the following two lines, and comment them out (code in red):

			//if ((this.dropmenuobj.y-topedge)<dropmenuH) //up no good either?
				//edgeoffset=this.dropmenuobj.y+obj.offsetHeight-topedge