function submitAction(formName, actionName) {
	form = document.getElementById(formName);
	if(form) {
		var input = document.createElement("input");
		input.setAttribute("type", "hidden" );
		input.setAttribute("name", actionName );
		input.setAttribute("value", "true" );
		form.appendChild(input);

		form.submit();
	}
}

function showContent(name) {
	document.getElementById(name).style.display = 'block';
}

function hideContent(name) {
	document.getElementById(name).style.display = 'none';
}

function switchChart(chart) {
	if (chart=='minutely') {
		showContent('minutely_chart');
		showContent('minutely_link');
		hideContent('daily_chart');
		hideContent('daily_link');
	}
	else if (chart=='daily') {
		showContent('daily_chart');
		showContent('daily_link');
		hideContent('minutely_chart');
		hideContent('minutely_link');
	}
}

function backToTop() {
	var x1 = x2 = x3 = 0;
	var y1 = y2 = y3 = 0;
	if (document.documentElement) {
		x1 = document.documentElement.scrollLeft || 0;
		y1 = document.documentElement.scrollTop || 0;
	}
	if (document.body) {
		x2 = document.body.scrollLeft || 0;
		y2 = document.body.scrollTop || 0;
	}
	x3 = window.scrollX || 0;
	y3 = window.scrollY || 0;
	var x = Math.max(x1, Math.max(x2, x3));
	var y = Math.max(y1, Math.max(y2, y3));
	window.scrollTo(Math.floor(x / 2), Math.floor(y / 2));
	if (x > 0 || y > 0) {
		window.setTimeout("backToTop()", 25);
	}
}