function showhideTab(tabid) {
	var tab = document.getElementById(tabid);
	var els = tab.getElementsByTagName('DIV');
    for(var i=0; i<els.length;i++)
    {
        //Swap image between plus/minus
        if(els[i].className=='tab')
		{
			var els1 = els[i].getElementsByTagName('DIV');
			for(var j=0; j<els1.length;j++)
			{
				//Plus button
				if(els1[j].className=="plus")
				{
					if ( tabid == "tab1" )
					{
						if (els1[j].style.display == "block")
							els1[j].style.display = "none";
						else
        					els1[j].style.display = "block";
					}
					else
					{
						if (els1[j].style.display == "none")
							els1[j].style.display = "block";
						else
							els1[j].style.display = "none";
					}
				}
				//Minus button
				if(els1[j].className=="minus")
				{
					if ( tabid == "tab1" )
					{
						if (els1[j].style.display == "none")
							els1[j].style.display = "block";
						else
        					els1[j].style.display = "none";
					}
					else
					{
						if (els1[j].style.display == "block")
							els1[j].style.display = "none";
						else
							els1[j].style.display = "block";
					}
				}
			}
		}
		//Show/hide tab
		if(els[i].className=="container")
		{
			if ( tabid == "tab1" )
			{
				if (els[i].style.display == "none")
					els[i].style.display = "block";
				else
        			els[i].style.display = "none";
			}
			else
			{
				if (els[i].style.display == "block")
					els[i].style.display = "none";
				else
        			els[i].style.display = "block";
			}
		}
    }
}

function showhideTabs(imgid, tabid) {
	var img = document.getElementById(imgid);
	//Swap image between plus/minus
	if (img.src.indexOf("minus.gif") != -1)
	    img.src = "../images/buttons/plus.gif";
	else
	    img.src = "../images/buttons/minus.gif";
	

	var tab = document.getElementById(tabid);
	//Tab
	if (tab.style.display == "block")
		tab.style.display = "none";
	else
		tab.style.display = "block";
}