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';

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

// 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; 

//this is where you set the source for the mouseOver images	   
 if (document.images) {
            m1on = new Image();
            m1on.src = "images/button_free_estimate_on.gif";
			m2on = new Image(); 
            m2on.src = "images/button_coupons_specials_on.gif";
			m3on = new Image(); 
            m3on.src = "images/button_feedback_on.gif";
			m4on = new Image(); 
            m4on.src = "images/button_accessories_on.gif";
			m5on = new Image(); 
            m5on.src = "images/button_our_work_on.gif";
			
			
	//this is where you set the source for the mouseOut images	  
            m1off = new Image(); 
            m1off.src = "images/button_free_estimate_off.gif";
			m2off = new Image(); 
            m2off.src = "images/button_coupons_specials_off.gif";
			m3off = new Image(); 
            m3off.src = "images/button_feedback_off.gif";
			m4off = new Image(); 
            m4off.src = "images/button_accessories_off.gif";
			m5off = new Image(); 
            m5off.src = "images/button_our_work_off.gif";
			
        }
function mOn(mName) {
        if (document.images) {
            document[mName].src = eval(mName + "on.src");
        }
}
function mOff(mName) {
        if (document.images) {
            document[mName].src = eval(mName + "off.src");
        }
}