function Change_img_pop(img){
	switch (img) {
		case "1960" : { document.map_pop.src = "images/p1960.png"; break;}
		case "1970" : { document.map_pop.src = "images/p1970.png"; break;}
		case "1980" : { document.map_pop.src = "images/p1980.png"; break;}
		case "1990" : { document.map_pop.src = "images/p1990.png"; break;}
		case "2000" : { document.map_pop.src = "images/p2000.png"; break;}
	}
}

function Change_img_pop_es(img){
	switch (img) {
		case "1960" : { document.map_pop.src = "../images/p1960.png"; break;}
		case "1970" : { document.map_pop.src = "../images/p1970.png"; break;}
		case "1980" : { document.map_pop.src = "../images/p1980.png"; break;}
		case "1990" : { document.map_pop.src = "../images/p1990.png"; break;}
		case "2000" : { document.map_pop.src = "../images/p2000.png"; break;}
	}
}