var ctr = 0;
	var elmnts = [];
	while (ctr < 4)
	{
		elmnts[ctr] = document.getElementById('tab' + (ctr + 1));
		elmnts[ctr].style.visibility = 'hidden';
		elmnts[ctr].style.position = 'absolute';
		ctr++;
	}


	function show(val)
	{	ctr=0;

		while (ctr < 5)
		{
			elmnts[ctr] = document.getElementById('tab' + (ctr + 1));
			elmnts[ctr].style.visibility = 'hidden';
			elmnts[ctr].style.position = 'absolute';
			ctr++;
		}
		hideall(val);
	}

	function hideall(val)
	{
		val = val-1;
		elmnts[val].style.visibility = 'visible';
		elmnts[val].style.position = 'static';

	}