// JavaScript Document

function showHideLayers() {
	if (document.getElementById("tab-c1").style.visibility == 'visible') {
		document.getElementById("c1header").style.background = "#556DAD";
	}
	else {
		document.getElementById("tab-c1").style.visibility = 'visible';
		document.getElementById("tab-c2").style.visibility = 'hidden';
		document.getElementById("tab-c3").style.visibility = 'hidden';
		document.getElementById("c1header").style.background = "#618fc3";
		document.getElementById("c2header").style.background = "#556DAD";
		document.getElementById("c3header").style.background = "#556DAD";
	}
}
function showHideLayers2() {
	if (document.getElementById("tab-c2").style.visibility == 'visible') {
		document.getElementById("c2header").style.background = "#556DAD";
	}
	else {
		document.getElementById("tab-c2").style.visibility = 'visible';
		document.getElementById("tab-c1").style.visibility = 'hidden';
		document.getElementById("tab-c3").style.visibility = 'hidden';
		document.getElementById("c2header").style.background = "#618fc3";
		document.getElementById("c1header").style.background = "#556DAD";
		document.getElementById("c3header").style.background = "#556DAD";
	}
}
function showHideLayers3() {
	if (document.getElementById("tab-c3").style.visibility == 'visible') {
		document.getElementById("c3header").style.background = "#556DAD";
	}
	else {
		document.getElementById("tab-c3").style.visibility = 'visible';
		document.getElementById("tab-c1").style.visibility = 'hidden';
		document.getElementById("tab-c2").style.visibility = 'hidden';
		document.getElementById("c3header").style.background = "#618fc3";
		document.getElementById("c2header").style.background = "#556DAD";
		document.getElementById("c1header").style.background = "#556DAD";
	}
}
function hidelayers() {
		document.getElementById("tab-c1").style.visibility = 'hidden';
		document.getElementById("tab-c2").style.visibility = 'hidden';
		document.getElementById("tab-c3").style.visibility = 'hidden';
		document.getElementById("c3header").style.background = "#556DAD";
		document.getElementById("c2header").style.background = "#556DAD";
		document.getElementById("c1header").style.background = "#556DAD";
}