var ids = [] ;
var curtabid = [] ;  
function show_tab( i , id )
{
	var cids = ids[i] ;
	if( curtabid[i] && curtabid[i] == id )
		return ;

		var len = cids.length ; 
		for( j = 0 ; j < len ; j++ )
		{
			obj = document.getElementById('tab_' + i.toString() + '_' + cids[j].toString() ) ;
			//alert('tab_' + i.toString() + '_' + cids[j].toString() );
			obj.className = 'tab_caption' ;
		}

	obj = document.getElementById('tab_' + i.toString() + '_' + id.toString() ) ;
	//alert('2tab_' + i.toString() + '_' + id.toString());
	obj.className = 'tab_caption_sel';
	
	obj = document.getElementById('tab_image_' + i.toString() ) ;
	obj.src = '/graph_preview.php?id='+id ;
	
	curtabid[i] = id ;
	
	obj.onclick = function(e)
	{
		document.location.href='/?pgid=23&do=view&id='+curtabid[i];
	}
	
	
	
}