function collapse_region(show) {
  if (document.getElementById) {
    if (document.getElementById(show)) { var show_me = document.getElementById(show).style; }
    var region1 = document.getElementById('region1').style;
    var region2 = document.getElementById('region2').style;
    var region3 = document.getElementById('region3').style;
    var region4 = document.getElementById('region4').style;
    var region5 = document.getElementById('region5').style;
    var region6 = document.getElementById('region6').style;
    var region7 = document.getElementById('region7').style;
    var region8 = document.getElementById('region8').style;
    var region9 = document.getElementById('region9').style;
    var region10 = document.getElementById('region10').style;
    region1.display = "none";
    region2.display = "none";
    region3.display = "none";
    region4.display = "none";
    region5.display = "none";
    region6.display = "none";
    region7.display = "none";
    region8.display = "none";
    region9.display = "none";
    region10.display = "none";
    if(show == 'regions1-6') {
       region1.display = "inline";
       region2.display = "inline";
       region3.display = "inline";
       region4.display = "inline";
       region5.display = "inline";
       region6.display = "inline";
    } else {  
      show_me.display = "inline";
    }
    //window.scroll(0, 600);
    return false;
  } else {
    return true;
  }
}