//----------------------------------------------
// menu functions
function doblocks() {
  for (var q = 0; q < blockarray.length; q++) {
    xyzswitch(blockarray[q]);
  }
}
function xswitch(listID) { 
   if(listID.style.display=="none") { 
        listID.style.display=""; 
    } else {
      listID.style.display="none"; 
    } 
} 

function xyzswitch(bid) { 
    xswitch(document.getElementById('ph'+bid)); 
    xswitch(document.getElementById('pe'+bid)); 
}

window.onLoad= doblocks;