open popup in open layers from external list

Hi to all, I have a map with a lot of marker. Every marker is added by the function at the bottom. All works very well and i can see all marker in the map with its popup if i click on it. Now I would create a popup window with an html list of all markers in the map and if i click an item i want the marker associated in the map opens its popup. I've looked in the example, but i can't find the solution. Is there a way to do what i need? Thank you very much for your help!

Answer this question:

function  addMarker(ll, popupClass, html, closeBox, overflow,isShow,mIndex) 
{    
     var  feature  =   new  OpenLayers.Feature(markers, ll); 
    feature.closeBox  =  closeBox;
    feature.popupClass  =  popupClass;
    feature.data.popupContentHTML  =  html;
    feature.data.overflow  =  (overflow)  ?   " auto "  :  " hidden " ;
                        
     var  marker  =  feature.createMarker();
    marker.setUrl( ' http://www.visitchn.com/main/map/img/marker ' + mIndex + ' .png ' );    // ICON
    marker.display( true );   
    
     if (isShow == true )
    {        
        removeAllPopup();
        feature.popup  =  feature.createPopup(feature.closeBox);
        map.addPopup(feature.popup);
        feature.popup.show();
    }
    
     var  markerClick  =   function  (evt) 
    {           
         if  ( this .popup  ==   null ) 
        {               
             this .popup  =   this .createPopup( this .closeBox);
            map.addPopup( this .popup);
             this .popup.show();
        }
         else  
        {
             this .popup.toggle();
        }
        currentPopup  =   this .popup;
        OpenLayers.Event.stop(evt);
    };  
    marker.events.register( " mousedown " , feature, markerClick);
    markers.addMarker(marker);
}

Code
I'm not familiar with Markers, but I would think

If you create your list with an onclick function ie. togglePopup(idx) with
the index of the marker, then
you should be able to show and hide the popup. What I don't know, if
marker.length and feature[idx] is the right way to reference to the markers.

After creating the markers, create the html of the list:

for(var i=0;i<marker.length;i++)
    theHTML = '<span onclick="togglePopup('+i+')">Marker ' + i +
'</span><br>';

document.getElementById("yourListDiv").innerHTML = theHTML;


and use as onclick function something like this:

function togglePopup(idx)
{
    if (feature[idx].popup == null) {
       feature[idx].popup =
feature[idx].createPopup(feature[idx].closeBox);
      map.addPopup(feature[idx].popup);
      feature[idx].popup.show();
    } else {
        feature[idx].popup.toggle();
    }
  currentPopup = feature[idx].popup;
}