Actually I'm using a plugin SpryTabs to navigate the menu. I've used two background-images for activating and deactivating of tabs. I'm activating a tab on hover. Means the tab gets highlighted and deactivate the selected tab on clicking other tab.
Until here everything is fine. But the real problem comes when user clicks on the tab after hover, the border gets displayed around the image.
This doesn't happen in Firefox, it happens only in Chrome and IE.