// Vicente Ribes (http://www.pgc-2008.com). Octubre del 2007.
var coord = Array()

function smAbrir(){
	obj = document.getElementById('smDesplegable')
	ref = document.getElementById('submenu')
	obj.style.visibility = 'visible'
	obj.style.display = 'block'
	tope = posicion(ref)['y'] + 24
	izquierda = posicion(ref)['x']
	obj.style.top = tope + 'px'
	obj.style.left = izquierda + 'px'
}

function smCerrar(){
	obj = document.getElementById('smDesplegable')
	obj.style.visibility = 'hidden'
	obj.style.display = 'none'
}

function posicion(oElement){
	if (typeof(oElement.offsetParent) != 'undefined'){
		for (var posX=0, posY=0; oElement; oElement=oElement.offsetParent){
			posX += oElement.offsetLeft
			posY += oElement.offsetTop
		}
			coord['y'] = posY
			coord['x'] = posX
	}
	else{
			coord['y'] = oElement.y
			coord['x'] = oElement.x
	}
	return coord
}