function addToSelection(FamiId, ProdId)
{
new Ajax.Request('/Ajax/Selection/AddProduct.aspx?FamiId='+ FamiId+'&ProdId='+ProdId,
        {
            method:'get',     
            onSuccess: function(transport){
                var response = transport.responseText ;
            },     
            onFailure: function(xhr){
                this.LastError="Error :" + xhr.status + ' - '  + xhr.statusText ; 
            }
        }); 
}

function removeFromSelection(FamiId, ProdId)
{
new Ajax.Request('/Ajax/Selection/RemoveProduct.aspx?FamiId='+ FamiId+'&ProdId='+ProdId,
        {
            method:'get',     
            onSuccess: function(transport){
                var response = transport.responseText ;
            },     
            onFailure: function(xhr){
                this.LastError="Error :" + xhr.status + ' - '  + xhr.statusText ; 
                
            }
        }); 
}