var timer = 0;
var drop_down = "";

var all_drop_down_menus = new Array();
//all_drop_down_menus[0] = "prices";
//all_drop_down_menus[1] = "products";
//all_drop_down_menus[2] = "brands";


function show_drop_down(menu) {
	var old_drop_down_value = drop_down;
	drop_down = document.getElementById(menu + "_drop_down");

	if (!drop_down) {
		drop_down = old_drop_down_value;
		return false;
	}

	var num_drop_down_menus = all_drop_down_menus.length;
	for (i = 0; i < num_drop_down_menus; i++) {
		if (menu != all_drop_down_menus[i]) {
			var other_drop_down = document.getElementById(all_drop_down_menus[i] + "_drop_down");
			if (other_drop_down)
				other_drop_down.style.visibility = 'hidden';
		}
	}

	drop_down.style.left = getMenuX(menu) + "px";
	drop_down.style.top = getMenuY(menu) + "px";
	drop_down.style.visibility = 'visible';

	clearTimeout(timer);
}

function hide_drop_down(menu) {
	var old_drop_down_value = drop_down;

	drop_down = document.getElementById(menu + "_drop_down");
	if (!drop_down) {
		drop_down = old_drop_down_value;
		return false;
	}

	timer = setTimeout("if (drop_down) drop_down.style.visibility = 'hidden';", 800);
}

function getMenuX(element_id){
	var xPos = document.getElementById(element_id).offsetLeft;
	var tempEl = document.getElementById(element_id).offsetParent;

	while (tempEl != null) {
		xPos += tempEl.offsetLeft;
		tempEl = tempEl.offsetParent;
	}

	if (element_id == "products") {
		//xPos = xPos + 250;
	}
	else if (element_id == "brands") {
		//xPos = xPos + 250;
	}

	//xPos += 186;

	return xPos;
}

function getMenuY(element_id) {
	var yPos = document.getElementById(element_id).offsetTop;
	var tempEl = document.getElementById(element_id).offsetParent;

	while (tempEl != null) {
		yPos += tempEl.offsetTop;
		tempEl = tempEl.offsetParent;
	}

	yPos += 19;

	return yPos;
}