function imgmousein(i)
{
	i.src = 'http://www.nrdc.org/laondaverde/images/' + i.name + '_on.jpg';
}

function mouseout(i)
{
	i.src = 'http://www.nrdc.org/laondaverde/images/' + i.name + '_off.jpg';
}

function preload()
{
	var a = Array(
		'http://www.nrdc.org/laondaverde/images/level2_nav_planeta_on.jpg',
		'http://www.nrdc.org/laondaverde/images/level2_nav_comunidad_on.jpg',
		'http://www.nrdc.org/laondaverde/images/level2_nav_tesoros_on.jpg',
		'http://www.nrdc.org/laondaverde/images/level2_nav_voces_on.jpg');
	for(i = 0; i < a.length; i++)
	{
		var im = new Image();
		im.src = a[i];
	}
}		

function video_window(url) {
// Opens a pop-up window named Link with contents from url.
// Note: this version of video_window only allows one open pop-up window --
// opening a second window will replace the first.
strParams = "toolbar=0,location=0,directories=0,status=0,menubar=0,";
strParams += "scrollbars=0,resizable=1,width=450,height=425,left=100,top=180";
window.open(url,"Link",strParams);
}

function googlemap_window(url) {
// Opens a pop-up window named Link with contents from url.
strParams = "toolbar=0,location=0,directories=0,status=0,menubar=0,";
strParams += "scrollbars=1,resizable=1,width=650,height=550,left=95,top=10";
window.open(url,"Link",strParams);
}