function switch_tab(tab_id, tab_count)
	{
	var x = document.getElementById('tab'+tab_id);

	switch(tab_id)
		{
		case 1:
			document.getElementById('tab'+1).className = 'tab_active';
			document.getElementById('tab'+2).className = 'tab_inactive_right';
			document.getElementById('tab'+3).className = 'tab_inactive_right';

			document.getElementById('content'+1).style.display ="inline"
			document.getElementById('content'+2).style.display ="none";
			document.getElementById('content'+3).style.display ="none";
			break;

		case 2:
			document.getElementById('tab'+1).className = 'tab_inactive_left';
			document.getElementById('tab'+2).className = 'tab_active';
			document.getElementById('tab'+3).className = 'tab_inactive_right';

			document.getElementById('content'+1).style.display ="none";
			document.getElementById('content'+2).style.display ="inline"
			document.getElementById('content'+3).style.display ="none";
			break;

		case 3:
			document.getElementById('tab'+1).className = 'tab_inactive_left';
			document.getElementById('tab'+2).className = 'tab_inactive_left';
			document.getElementById('tab'+3).className = 'tab_active';

			document.getElementById('content'+1).style.display ="none";
			document.getElementById('content'+2).style.display ="none";
			document.getElementById('content'+3).style.display ="inline"
			break;

		default:
			document.getElementById('tab'+1).className = 'tab_active';
			document.getElementById('tab'+2).className = 'tab_inactive_right';
			document.getElementById('tab'+3).className = 'tab_inactive_right';

			document.getElementById('content'+1).style.display ="inline"
			document.getElementById('content'+2).style.display ="none";
			document.getElementById('content'+3).style.display ="none";
			break;
		}
	}
	
function switch_tabs(tab_index, tab_count, tab_header_id, tab_content_id)
	{
	for(i=1; i<=tab_count; i++)
		{
		if(i==tab_index)
			{
			document.getElementById(tab_header_id+i).className = 'tab_active';
			document.getElementById(tab_content_id+i).style.display ="inline"
			}
		else
			{
			document.getElementById(tab_content_id+i).style.display ="none";
			if(i<tab_index)
				{
				document.getElementById(tab_header_id+i).className = 'tab_inactive_left';
				}
			else
				{
				document.getElementById(tab_header_id+i).className = 'tab_inactive_right';
				}
			}
		}
	}