function js_toggleVisibility(obj, display) {
	if (obj.style.visibility=="hidden"){
		obj.style.visibility="visible";
		// Change back to 'block' unless specified otherwise.
		if (typeof(display) == "undefined" || display.length == 0) {
			obj.style.display="block";
		} else {
			obj.style.display=display;
		}
	}
	else {
		obj.style.visibility="hidden";
		obj.style.display="none";
	}
}
function js_showSignInBox() {
	var signInBox = document.getElementById('signInBox');
	if (signInBox) {
		js_toggleVisibility(signInBox, "block");
		js_selectUser();
	}
}
function js_hideSignInBox() {
	var signInBox = document.getElementById('signInBox');
	if (signInBox) {
		js_toggleVisibility(signInBox, "block");
	}			
}
function js_selectUser()
{
	document.getElementById("email").select();
	document.getElementById("email").focus();
}
function js_selectPwd()
{
	document.getElementById("password").select();
}