[FIX] sidebars: No need to use document.getElementById(maincol).baseURI as document.URL is supported by all browsers and maincol is not always present (in filegal manager popup for instance)
[FIX] sidebars: No need to use document.getElementById(maincol).baseURI as document.URL is supported by all browsers and maincol is not always present (in filegal manager popup for instance)

git-svn-id: bf8acf6ea2e0c2f171d9237652733ab0075b5b4c@46280 b456876b-0849-0410-b77d-98878d47e9d5

tikiorg/tiki,oregional/tiki,changi67/tiki,oregional/tiki,tikiorg/tiki,oregional/tiki,tikiorg/tiki,changi67/tiki,oregional/tiki,tikiorg/tiki,changi67/tiki,changi67/tiki,changi67/tiki