function SelectAll()
{
    for(i = 0; i < document.formCaves.elements.length; i++)
    {
        if(document.formCaves.elements[i].type == 'checkbox')
        {
            document.formCaves.elements[i].checked=1;
        }
    }
}


function UnselectAll()
{
    for(i = 0; i < document.formCaves.elements.length; i++)
    {
        if(document.formCaves.elements[i].type == 'checkbox')
        {
            document.formCaves.elements[i].checked=0;
        }
    }
}


function ExportSelected()
{
    document.formCaves.exp_param.value= "export_selected";
    document.formCaves.submit();
}

function unsetExport(){
  document.formCaves.exp_param.value="";
}