<!--
function CheckAllYears()
{
    var elem = document.getElementById("year").getElementsByTagName("input");
      for(var i=1;i<elem.length;i++){
        if(elem[i].type=="checkbox"){
           elem[i].checked = elem[0].checked? true:false;
        }
      }
}

function CheckAllDocuments()
{
    var elem = document.getElementById("document").getElementsByTagName("input");
      for(var i=1;i<elem.length;i++){
        if(elem[i].type=="checkbox"){
           elem[i].checked = elem[0].checked? true:false;
        }
      }
}

function CheckAllChannels()
{
    var elem = document.getElementById("channel").getElementsByTagName("input");
      for(var i=1;i<elem.length;i++){
        if(elem[i].type=="checkbox"){
           elem[i].checked = elem[0].checked? true:false;
        }
      }
}

function CheckAllCountries()
{
    var elem = document.getElementById("country").getElementsByTagName("input");
      for(var i=1;i<elem.length;i++){
        if(elem[i].type=="checkbox"){
           elem[i].checked = elem[0].checked? true:false;
        }
      }
}
-->