var torg_pos=1;

function torg_cell( inc, obj ){
	torg_pos += inc;
	if( torg_pos < 1 ) torg_pos++;
	if( !document.getElementById( 'trgcl_t' + obj + ( torg_pos + 2 ) ) ) torg_pos--;
	var tlc_on = document.getElementById( 'trg_left_ctrl_on' + obj );
	var tlc_off = document.getElementById( 'trg_left_ctrl_off' + obj );
	var trc_on = document.getElementById( 'trg_right_ctrl_on' + obj );
	var trc_off = document.getElementById( 'trg_right_ctrl_off' + obj );
	if( !document.getElementById( 'trgcl_t' + obj + ( torg_pos - 1 ) ) ){
		tlc_on.className = "off";
		tlc_off.className = "";
	}else{
		tlc_on.className = "";
		tlc_off.className = "off";
	}
	if( !document.getElementById( 'trgcl_t' + obj + ( torg_pos + 3 ) ) ){
		trc_on.className = "off";
		trc_off.className = "";
	}else{
		trc_on.className = "";
		trc_off.className = "off";
	}
	for( var i = 1; ; i++ ){
		var o_t = document.getElementById( 'trgcl_t' + obj + i );
		var o_m = document.getElementById( 'trgcl_m' + obj + i );
		var o_b = document.getElementById( 'trgcl_b' + obj + i );
		if( !o_t ) break;
		if( i >= torg_pos && i <= torg_pos + 2){
			o_t.className = "c";
			o_m.className = "c";
			o_b.className = "c";
		}else{
			o_t.className = "c off";
			o_m.className = "c off";
			o_b.className = "c off";
		}
	}
	return false;
}

function torg_cell2( inc, obj ){
	torg_pos += inc;
	if( torg_pos < 1 ) torg_pos++;
	if( !document.getElementById( 'trgcl_t' + obj + ( torg_pos + 2 ) ) ) torg_pos--;
	var tlc_on = document.getElementById( 'trg_left_ctrl_on' + obj );
	var tlc_off = document.getElementById( 'trg_left_ctrl_off' + obj );
	var trc_on = document.getElementById( 'trg_right_ctrl_on' + obj );
	var trc_off = document.getElementById( 'trg_right_ctrl_off' + obj );
	if( !document.getElementById( 'trgcl_t' + obj + ( torg_pos - 1 ) ) ){
		tlc_on.className = "off";
		tlc_off.className = "";
	}else{
		tlc_on.className = "";
		tlc_off.className = "off";
	}
	if( !document.getElementById( 'trgcl_t' + obj + ( torg_pos + 3 ) ) ){
		trc_on.className = "off";
		trc_off.className = "";
	}else{
		trc_on.className = "";
		trc_off.className = "off";
	}
	for( var i = 1; ; i++ ){
		var o_t = document.getElementById( 'trgcl_t' + obj + i );
		if( !o_t ) break;
		if( i >= torg_pos && i <= torg_pos + 2){
			o_t.className = "c";
		}else{
			o_t.className = "c off";
		}
	}
	return false;
}

function switcher( img, block, HN ){
	if( document.getElementById( img ).src.indexOf( 'images/tree_off.gif' ) > 0 ){
		document.getElementById( img ).src = HN + 'images/tree_on.gif';
		document.getElementById( block ).style.display = 'block';  
	}else{
		document.getElementById( img ).src = HN + 'images/tree_off.gif';
		document.getElementById( block ).style.display = 'none';
	}
} 

function setImageSet( i_plan, ii_plan, HN, item ){
	for( i = 0; i < document.anchors.length; i++ ){
		var item_name = new String( document.anchors[i].name );
		if( "item" == item_name.substr( 2, 4 ) ){
			var item_code = item_name.substring( 6, item_name.length );
//			document.getElementById( "item" + item_code ).style.fontWeight = "normal";
			document.getElementById( "item" + item_code ).style.color = "#726d5f";
		}
	}
	document.getElementById( "divObjectPhotos" ).style.display = 'none';
	document.getElementById( "divImageSet" ).style.display = 'block';
	document.getElementById( "ImageSetLink" ).style.display = 'block';
	document.getElementById( "ImageSet" ).src = HN + "images/p.gif";
	document.getElementById( "ImageSet" ).src = HN + i_plan;
	document.getElementById( "ImageSetLink" ).innerHTML = "&nbsp;";
	if( "" != ii_plan ){
		document.getElementById( "ImageSetLink" ).innerHTML = '<a href="' + HN + ii_plan + '" target=\"_blank\">увеличить</a>';
	}
	document.getElementById( "item" + item ).style.fontWeight = "bold";
	document.getElementById( "item" + item ).style.color = "#ba3024";
}