ui.tags add method not consistent with _tabify

[biaggi]

Despite you can use any html code in the tabs with the tabTemplate option, the _tabify method is looking for ul to insert new tabs when add method is called.

You can reproduce this error using the tabTemplate example:  http://docs.jquery.com/UI/API/1.7/Tabs#option-tabTemplate

A workaround is to extend the class and overwrite that method updating that two lines with the html element you choose.

A good solution i guess would be to parse the tabTemplate option to get from there the element you need to look for.

Best regards

[klaus.hartl]

The tab template option is for a single tab element, while the ul is a requirement and cannot be set in that template.

[biaggi]

What i mean is tabTemplate option in ui.tabs.js and lines 74 and 75 in that file:

		this.list = this.element.children('ul:first');
		this.lis = $('li:has(a[href])', this.list);

are incompatible, there is a clear inconsistence in the tabs because if you can change the single tab but cant change the container the html generated is not a valid page.

If we follow the example described in this page:  http://docs.jquery.com/UI/API/1.7/Tabs#option-tabTemplate

We will get an invalid html code (<ul><div></div></ul>) is not a html valid code.

Related with #3758. Maybe in that ticket is better explained.