function toggleBox(szDivID)
{

    imgID='img_'+szDivID;
    szDivID='expand_'+szDivID;
	
    if(document.layers)	   //NN4+
    {
       display = document.layers[szDivID].display;
       vis = document.layers[szDivID].visibility;	
       document.layers[szDivID].display = (display=="inline") ? "none" : "inline";
       document.layers[szDivID].visibility = (vis=="visible") ? "hidden" : "visible";
       document.layers[imgID].src = (display=="inline") ? "../PRESENTnueva/HTML/images/bullet_abierto.gif" : "../PRESENTnueva/HTML/images/bullet_cerrado.gif";
    }
    else if(document.getElementById)	  //gecko(NN6) + IE 5+
    {
        var obj = document.getElementById(szDivID);
	display = obj.style.display;
	vis = obj.style.visibility;
        obj.style.display = (display=="inline") ? "none" : "inline";
	obj.style.visibility = (vis=="visible") ? "hidden" : "visible";
	var obj = document.getElementById(imgID);
        obj.src = (display=="inline") ? "../PRESENTnueva/HTML/images/bullet_abierto.gif" : "../PRESENTnueva/HTML/images/bullet_cerrado.gif";
    }
    else if(document.all)	// IE 4
    {
	display = document.all[szDivID].style.display;
	vis = document.all[szDivID].style.visibility;
        document.all[szDivID].style.display = (display=="inline") ? "none" : "inline";
	document.all[szDivID].style.visibility = (vis=="visible") ? "hidden" : "visible";
	document.all[imgID].src = (display=="inline") ? "../PRESENTnueva/HTML/images/bullet_abierto.gif" : "../PRESENTnueva/HTML/images/bullet_cerrado.gif";
    }
}

function openURL(id,url,scrolly)
{
	window.open(url);
}

function openURL2(id,url,scrolly)
{
	var win = new Window(id, {title:id, width:640, height:480, top: scrolly, resizable: true, maximizable: false, minimizable: false, url: url, showEffectOptions: {duration:3}});
	win.setDestroyOnClose(); 
	win.showCenter(true);
}