function agregarSeudoClases () {
	navRoot = $("nav");
	if (navRoot != null) {
		for (i = 0; i < navRoot.childNodes.length; i++) {
			node = navRoot.childNodes[i];
			if (node.nodeName == "LI") {
				node.onmouseover = function() {
					Element.addClassName(this, 'over');
				}
				node.onmouseout = function() {
					Element.removeClassName(this, 'over');
				}
			}
		}
	}
	navBuscador = $("home_buscador");
	if (navBuscador != null) {
		navBuscador.onfocus = function() {
			Element.addClassName(this, 'focused');
		}
		navBuscador.onblur = function() {
			Element.removeClassName(this, 'focused');
		}
	}
	
	var arrInputsFormularios = document.getElementsByTagName("input");
	var lenInputsFormularios = arrInputsFormularios.length;
	for (var i = 0; i < lenInputsFormularios; i++) {
		var campo = $(arrInputsFormularios[i]);
		var boolAgregarSeudoClases = campo.getAttribute("boolAgregarSeudoClases");
		if (boolAgregarSeudoClases == "true") {
			if (campo != null) {
				campo.onfocus = function() {
					Element.addClassName(this, 'focused');
				}
				campo.onblur = function() {
					Element.removeClassName(this, 'focused');
				}
			}
		}
	}
	
	var arrTextAreasFormularios = document.getElementsByTagName("textarea");
	var lenTextAreasFormularios = arrTextAreasFormularios.length;
	for (var i = 0; i < lenTextAreasFormularios; i++) {
		var campo = $(arrTextAreasFormularios[i]);
		var boolAgregarSeudoClases = campo.getAttribute("boolAgregarSeudoClases");
		if (boolAgregarSeudoClases == "true") {
			if (campo != null) {
				campo.onfocus = function() {
					Element.addClassName(this.parentNode.parentNode, 'focused');
				}
				campo.onblur = function() {
					Element.removeClassName(this.parentNode.parentNode, 'focused');
				}
			}
		}
	}
	
	if ($('mediaColumna_dropdown')) {
		$('mediaColumna_dropdown').observe('mouseover', function(event) {
			$('mediaColumna_dropdown_container').addClassName('dropdown_over');
		});
	
		$('mediaColumna_dropdown').observe('mouseout', function(event) {
			$('mediaColumna_dropdown_container').removeClassName('dropdown_over');
		});
	
		$('mediaColumna_dropdown').observe('change', function(event) {
			$('mediaColumna_dropdown_label').update(this.options[this.selectedIndex].text);
		});
	}
	
	navContenido_mas4Noticias = $("contenido_mas4Noticias");
	if (navContenido_mas4Noticias != null) {
		arrNoticias = navContenido_mas4Noticias.getElementsByClassName("noticia");	
		for (i = 0; i < arrNoticias.length; i++) {
			node = arrNoticias[i];
			node.onmouseover = function() {
				Element.addClassName(this, 'over');
			}
			node.onmouseout = function() {
				Element.removeClassName(this, 'over');
			}
		}
	}
	navContenido_mas10Noticias = $("contenido_mas10Noticias");
	if (navContenido_mas10Noticias != null) {
		arrNoticias = navContenido_mas10Noticias.getElementsByClassName("noticia");	
		for (i = 0; i < arrNoticias.length; i++) {
			node = arrNoticias[i];
			node.onmouseover = function() {
				Element.addClassName(this, 'over');
			}
			node.onmouseout = function() {
				Element.removeClassName(this, 'over');
			}
		}
	}
}
window.onload = agregarSeudoClases;