if (document.images)
{
	pic1= new Image(436,109);
	pic1.src='graphics/login_tab_2.gif';
	pic2= new Image(436,109);
	pic2.src='graphics/login_tab_3.gif';
}

function swapTab(itab)
	
	{
	switch (itab)
		{
		case 1:
			var newImage="url('graphics/login_tab_1.gif')";
			document.getElementById('disp_tab').innerHTML=document.getElementById('tab1').innerHTML;
			break;
		case 2:
			var newImage="url('graphics/login_tab_2.gif')";
			document.getElementById('disp_tab').innerHTML=document.getElementById('tab2').innerHTML;
			break;
		case 3:
			var newImage="url('graphics/login_tab_3.gif')";
			document.getElementById('disp_tab').innerHTML=document.getElementById('tab3').innerHTML;
			break;
		default:
			break;
		}
	document.getElementById('tab_back').style.backgroundImage = newImage;
	}