function toggle(id){
	hide();
	var doc = document.getElementById(id);
	doc.style.display = 'block';
}
function hide(){
	var divs = document.getElementsByTagName('p');
	for (var i=0; i<divs.length; i++) {
		if(divs[i].className == 'info_box') {
			divs[i].style.display = 'none';
		}
	}
}