var desplegada=0;
var popup;

function openPopup(url,ancho,alto)
{
	if(desplegada==1){popup.close();popup=null;desplegada=0}
	popup=window.open(url,'popup','width='+ancho+',height='+alto+',status=no,resizable=no,scrollbars=no,toolbars=no');
	popup.resizeTo(ancho+12,alto+58);
	popup.moveTo((screen.width-ancho)/2,(screen.height-(alto+58))/2);
	desplegada++;
}

function getCSSbyBrowser(css)
{
	var nombre = navigator.appName;
	if (nombre == "Microsoft Internet Explorer")
		document.write("<LINK rel='stylesheet' type='text/css' href='css/"+css+".css'>");
	else
		document.write("<LINK rel='stylesheet' type='text/css' href='css/"+css+"_firefox.css'>");
}

function tip(texto)
{
	var objeto = new getObj('tip');
	objeto.obj.innerText=texto;
}

function gestDiv(divObj, nextTag)
 {
 	var objeto = new getObj(divObj);
	if(objeto.style.display=='none')
	{
		show(divObj);
		if(nextTag!=' ')
		{
			var tag = new getObj(nextTag);
			tag.obj.className="mnuopt_blanco";
		}
	}
	else
	{
		if(nextTag!=' ')
		{
			var tag = new getObj(nextTag);
			tag.obj.className="mnuopt";
		}
		hide(divObj);
	}
 }

function getObj(name)
{
	if (document.getElementById)
	{
		this.obj = document.getElementById(name);
		this.style = document.getElementById(name).style;
	}
	else if (document.all)
	{
		this.obj = document.all[name];
		this.style = document.all[name].style;
	}
	else if (document.layers)
	{
		this.obj = document.layers[name];
		this.style = document.layers[name];
	}
}

function show(elemento)
{
	var objeto= new getObj(elemento);
	objeto.style.display='block';
}

function hide(elemento)
{
	var objeto= new getObj(elemento);
	objeto.style.display='none';
}