/*

	Ublog - Motor de publicacion de contenido docente
	JM Software (c) 2008

*/

function hoverMenuItem(div) {

	// CSS
	Element.addClassName(div, 'menuElementoHover');
	return	
}

function unHoverMenuItem(div) {

	// CSS
	Element.removeClassName(div, 'menuElementoHover');
	return	
}




function shareMouseOver(event) {
	
	var elemento = Event.element(event);
	var td = elemento;
	
	if(elemento.tagName == "IMG") {
		var img = elemento;
		td = elemento.parentNode
	}
	else
		var img = elemento.childNodes[0];	
	
	
	// icono en off
	if(event.type == "mouseover") {
	
		img.src = img.src.replace(/_off/gi, "_on")
		td.style.textDecoration = "underline";
	}
	// icono en on
	else {

		img.src = img.src.replace(/_on/gi, "_off")
		td.style.textDecoration = "none";

	}
	
                          
}

window.showShareMas = function(elemento) {

	var div = $(elemento).up(".elementoTabla").select(".dummyShareDiv")[0]

	if($(div).visible()) {
		
		new Effect.SlideUp(div, {duration: 0.4})
		$(elemento).update('<img src="img/barraInferiorGo.png" align="absmiddle" border="0" width="11" height="11"> M&aacute;s')
	} 
	else {
		
		new Effect.SlideDown(div, {duration: 0.4})
		$(elemento).update('<img src="img/barraInferiorDropDown.png" align="absmiddle" border="0" width="11" height="11"> Menos')
		
	}
	
}

function menuItemHover(item) {
	
	if(Element.hasClassName(item, 'barraSuperiorHover'))
		Element.removeClassName(item, 'barraSuperiorHover')
	else
		Element.addClassName(item, 'barraSuperiorHover')
}