var zoom="out";


function doZoom(){
	var magIcon=document.getElementById('mag');
	var mapPic=document.getElementById('map');
	if (zoom=="in"){
		zoom="out";
		magIcon.innerHTML='<img src="../images/12-mag-plus.png"/>';
		mapPic.innerHTML='<img src="../images/12-small-map.png"/>';
	} else {
		zoom="in";
		magIcon.innerHTML='<img src="../images/12-mag-minus.png"/>';
		mapPic.innerHTML='<img src="../images/12-large-map.png"/>';
	}
}