// JavaScript Document
function changes(id, def)
{
    var obj = document.getElementById(id);
    var tabhead = null;
    var tabbody = null;
    for (var i = 0; i < obj.childNodes.length; i++)
    {   
         var node = obj.childNodes[i];
         if (node.tagName == 'DIV')
		 {
         if (node.className == 'tabspan')tabhead = node;
         else 
		 if (node.className == 'tabbody')tabbody = node;
         }
    }
    var items = tabhead.getElementsByTagName('span');
    var datas = tabbody.getElementsByTagName('div');
    var total = items.length;
    for (var i = 0; i < total; i++)
    {
    datas[i].style.display = (i == def ? '' : 'none');
    items[i].className = (i == def ? 'current' : '');
    items[i].onclick = function() 
	    { 
        for (var k = 0; k < total; k++)
            {
            datas[k].style.display = (this == items[k] ? '' : 'none');
            items[k].className = (this == items[k] ? 'current' : '');
            }
        }
     }
}