function ChangeZoomImage(num_img){

		if(zoom_img_on!=num_img){
			var toDeactive=document.getElementById("zoom_img"+zoom_img_on);
			var toActive=document.getElementById("zoom_img"+num_img);	
			toDeactive.src='http://www.distritomaritimo.com/mapas/images/zoom'+zoom_img_on+'.gif';
			toActive.src='http://www.distritomaritimo.com/mapas/images/zoom'+num_img+'on.gif';
			zoom_img_on=num_img;
		}
	}
	
	function activeZoomImage(num){
		if(zoom_img_on!=num){
			var toActive=document.getElementById("zoom_img"+num);
			toActive.src='http://www.distritomaritimo.com/mapas/images/zoom'+num+'on.gif';
		}
	}
	
	function deactiveZoomImage(num){
		if(zoom_img_on!=num){
			var toDeactive=document.getElementById("zoom_img"+num);
			toDeactive.src='http://www.distritomaritimo.com/mapas/images/zoom'+num+'.gif';
		}
	}
	
	function activeZoomInOut(num){
		var toActive=document.getElementById("zoom_inout"+num);
		toActive.src='http://www.distritomaritimo.com/mapas/images/zoom_inout'+num+'on.gif';
	}
	
	function deactiveZoomInOut(num){
		var toDeactive=document.getElementById("zoom_inout"+num);
		toDeactive.src='http://www.distritomaritimo.com/mapas/images/zoom_inout'+num+'.gif';
	}