function OpenLegend(legend) {
	if (legend == 1) {
		var legendItem = document.getElementById("routes");
		
		if (legendItem.style.display == "none") {
			document.getElementById("im_routes").src = "imgs/buttons/open.gif";
			legendItem.style.display = "block";
		} else {
			document.getElementById("im_routes").src = "imgs/buttons/closed.gif";
			legendItem.style.display = "none";
		}
				
	} else if (legend ==2) {
		var legendItem = document.getElementById("lines");
		
		if (legendItem.style.display == "none") {
			document.getElementById("im_lines").src = "imgs/buttons/open.gif";
			legendItem.style.display = "block";
		} else {
			document.getElementById("im_lines").src = "imgs/buttons/closed.gif";
			legendItem.style.display = "none";
		}
		
	} else if (legend == 3) {
		var legendItem = document.getElementById("ships");
		
		if (legendItem.style.display == "none") {
			document.getElementById("im_ships").src = "imgs/buttons/open.gif";
			legendItem.style.display = "block";
		} else {
			document.getElementById("im_ships").src = "imgs/buttons/closed.gif";
			legendItem.style.display = "none";
		}
		
	} else if (legend == 0) {
		var shipLegendItem = document.getElementById("ships");
		var routeLegendItem = document.getElementById("routes");
		var linesLegendItem = document.getElementById("lines");
		
		if ((document.getElementById("im_expandall").src == "http://www.alaskacruiseexperts.com/imgs/buttons/closed.gif") || (document.getElementById("im_expandall").src == "https://www.alaskacruiseexperts.com/imgs/buttons/closed.gif")) {
			document.getElementById("im_ships").src = "imgs/buttons/open.gif";
			document.getElementById("im_lines").src = "imgs/buttons/open.gif";
			document.getElementById("im_routes").src = "imgs/buttons/open.gif";
			
			document.getElementById("im_expandall").src = "imgs/buttons/open.gif";
			document.getElementById("sp_expand").innerHTML= '<a href="javascript:OpenLegend(0);">Collapse All</a>';
			
			shipLegendItem.style.display = "block";
			routeLegendItem.style.display = "block";
			linesLegendItem.style.display = "block";
		} else {
			document.getElementById("im_ships").src = "imgs/buttons/closed.gif";
			document.getElementById("im_lines").src = "imgs/buttons/closed.gif";
			document.getElementById("im_routes").src = "imgs/buttons/closed.gif";
			
			document.getElementById("im_expandall").src = "imgs/buttons/closed.gif";
			document.getElementById("sp_expand").innerHTML= '<a href="javascript:OpenLegend(0);">Expand All</a>';
			
			shipLegendItem.style.display = "none";
			routeLegendItem.style.display = "none";
			linesLegendItem.style.display = "none";
		}		
	}
}