var timeout         = 500;
var closetimer		= 0;
var ddmenuitem      = 0;

// open hidden layer
function mopen(id)
{	
	// cancel close timer
	mcancelclosetime();

	// close old layer
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';

	// get new layer and show it
	ddmenuitem = document.getElementById(id);
	ddmenuitem.style.visibility = 'visible';

	if (id == 'm2') {

	    document.getElementById("aBuy").className = "buyBtn";
	    document.getElementById("aRent").className = "rentBtnSelectedYel";
	}

	if (id == 'm1') {

	    document.getElementById("aRent").className = "rentBtn";
	    document.getElementById("aBuy").className = "buyBtnSelectedYel";
	}

}
// close showed layer
function mclose()
{
    if (ddmenuitem) ddmenuitem.style.visibility = 'hidden';

        document.getElementById("aRent").className = "rentBtn";

        document.getElementById("aBuy").className = "buyBtn";

}

// go close timer
function mclosetime() {
    closetimer = window.setTimeout(mclose, timeout);
}

// cancel close timer
function mcancelclosetime()
{
	if(closetimer)
	{
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}

// close layer when click-out
document.onclick = mclose;