function showtab(which)
{
	var inh_tab1 = document.getElementById("one");
	var inh_tab2 = document.getElementById("two");
	
	
	if( which == 1)
	{
		inh_tab1.style.visibility 	= 'visible';
		inh_tab1.style.display	 	= 'block';
		inh_tab2.style.visibility 	= 'hidden';
		inh_tab2.style.display 		= 'none';
		
		document.getElementById("tab1").className = "active";
		document.getElementById("tab2").className = "non";
	}
	if( which == 2)
	{
		inh_tab1.style.visibility 	= 'hidden';
		inh_tab1.style.display 		= 'none';
		inh_tab2.style.visibility 	= 'visible';
		inh_tab2.style.display	 	= 'block';

		document.getElementById("tab2").className = "active";
		document.getElementById("tab1").className = "non";
	}
}