// JavaScript Document

function $() 
{

    var elements = new Array();
	
    for (var i = 0;
	i < arguments.length;
	i++) 
    {

	var element = arguments[i];
	
	if (typeof element == 'string') 
	    element = document.getElementById(element);
	
	if (arguments.length == 1) 
	    return element;
	
	elements.push(element);
	
    } 
    return elements;
	
}
function changeImg(num)
{
	var img = $('item_pic').getElementsByTagName('img');
	var tagImg = $('item_change_tag').getElementsByTagName('img');
	var img_len = img.length;
	for(var i=0; i<img_len; i++)
	{
		if(num == i)
		{
			img[i].style.display = 'block';
			tagImg[i].src = "../images/layout/other_dot_hi.gif";
		}
		else
		{
			img[i].style.display = 'none';
			tagImg[i].src = "../images/layout/other_dot.gif";
		}
	}
}