// JavaScript Document
function MM_swapImgRestore() { //v2.0
	if (document.MM_swapImgData != null)
		for (var i=0; i<(document.MM_swapImgData.length-1); i+=2)
			document.MM_swapImgData[i].src = document.MM_swapImgData[i+1];
}

function MM_swapImage() { //v2.0
	var i,j=0,objStr,obj,swapArray=new Array,oldArray=document.MM_swapImgData;
	for (i=0; i < (MM_swapImage.arguments.length-2); i+=3) {
		objStr = MM_swapImage.arguments[(navigator.appName == 'Netscape')?i:i+1];
			if ((objStr.indexOf('document.layers[')==0 && document.layers==null) ||
				(objStr.indexOf('document.all[') ==0 && document.all ==null))
					objStr = 'document'+objStr.substring(objStr.lastIndexOf('.'),objStr.length);
			obj = eval(objStr);
			if (obj != null) {
				swapArray[j++] = obj;
				swapArray[j++] = (oldArray==null || oldArray[j-1]!=obj)?obj.src:oldArray[j];
				obj.src = MM_swapImage.arguments[i+2];
				} 				
	}
	document.MM_swapImgData = swapArray; //used for restore
}
var ultima;
<!--
function doSection (secNum){
//display the section if it's not displayed; hide it if it is displayed
if (secNum.style.display=="none"){secNum.style.display=""}
else{secNum.style.display="none"}
}

function noSection (secNum){
//remove the section when user clicks in the opened DIV
if (secNum.style.display==""){secNum.style.display="none"}
}

function secciones(seccion){
//desactivo la ultima seccion que presionamos
if(ultima!=null && seccion!=ultima) {
   noSection(ultima);
  }
//activo la seccion que presionamos
   doSection(seccion);
//seteamos la ultima seccion presionada
if(seccion==ultima){
  ultima=null;
 }
else
  ultima=seccion;
}