// Navigation Menu ----------------------------------------------------------------------//

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

function menu_open(id){	
	null_close_timer();
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
	ddmenuitem = document.getElementById(id);
	ddmenuitem.style.visibility = 'visible';
}

function menu_close(){
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}

function close_timer(){
	closetimer = window.setTimeout(menu_close, timeout);
}

function null_close_timer(){
	if(closetimer){
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}

function inactive(id){
	document.getElementById(id).style.backgroundImage = '';
}

document.onclick = menu_close; 


// Search Input -------------------------------------------------------------------------//

function clearText(field){
	if(field.defaultValue == field.value){
		field.value = '';
	} else 
	if(field.value == ''){
		field.value = field.defaultValue;
	}
}