var gabs = new Array('gab1', 'gab2', 'gab3', 'gab4');

function showGab(sab, gabName)
{
	var gabToShow = document.getElementById(gabName);

	for(i = 0; i< gabs.length; i++)
	{
		// Get the current panel
		var curGab = document.getElementById(gabs[i]);

		// If it exists, hide it
		if (curGab != null)
			curGab.style.display = 'none';
	}

	// This line works around a display bug in Gecko-based browsers
	gabToShow.style.display = 'inline';

	// Show the panel
	gabToShow.style.display = 'block';

	return false;
}