var count_scroll = 0;
var tm = new Array();

$(document).ready(function(){
	var max_count_scroll = Math.floor(parseInt($('#projects-down').attr('offsetWidth')) / 122);
	if (max_count_scroll > 4) { 
		$(".projects_arrow_right").css("display", "block");	
	}
});

function tp_scroll(lr) {
	var max_count_scroll = Math.floor(parseInt($('#projects-down').attr('offsetWidth')) / 122);
	
	if (lr=='left') {
		if (count_scroll>0) {
			count_scroll--;
			$(".projects_lenta").animate({ left: '+=122px'}, 600);
		}
	} else if (lr=='right') {
		if (count_scroll<max_count_scroll-4) {
			count_scroll++;
			$(".projects_lenta").animate({ left: '-=122px'}, 600);
		}
	}
	
	if (count_scroll + 4 >= max_count_scroll) { $(".projects_arrow_right").css("display", "none");	} 	
	else { $(".projects_arrow_right").css("display", "block");	}
	
	if (count_scroll <= 0) { $(".projects_arrow_left").css("display", "none");	} 	
	else { $(".projects_arrow_left").css("display", "block");	}
	
	return false;
}


function tp_tree_show(idx) {
	
	if ($("#sub_" + idx).length) {
		if ($("#sub_" + idx).css('display') != 'block') {
			$('div[id^="sub_"]').slideUp("fast");
			$("#sub_" + idx).slideDown("fast");
		}
	}
	return false;
}

function tp_tree_tm_start(idx) {
	tm[idx] = setTimeout( function() { tp_tree_show(idx); }, 500);
	return false;
}

function tp_tree_tm_clear(idx) {
	clearTimeout(tm[idx]);
	return false;
}