var shortForm = true;

function LEMS_hideLayer(whichLayer) {
  if (document.getElementById) {
    // this is the way the standards work
    document.getElementById(whichLayer).style.visibility = "hidden";
  } else if (document.all) {
    // this is the way old msie versions work
    document.all[whichlayer].style.visibility = "hidden";
  } else if (document.layers) {
    // this is the way nn4 works
    document.layers[whichLayer].visibility = "hidden";
  }
}

function LEMS_showLayer(whichLayer) {
  if (document.getElementById) {
    // this is the way the standards work
    document.getElementById(whichLayer).style.visibility = "visible";
  } else if (document.all) {
    // this is the way old msie versions work
    document.all[whichlayer].style.visibility = "visible";
  } else if (document.layers) {
    // this is the way nn4 works
    document.layers[whichLayer].visibility = "visible";
  }
}

function LEMS_hideAll() {
  var LEMS_Layers = 
 	["LEMS_regInstr", "LEMS_regPricing", "LEMS_regInfo", 
	 "LEMS_regClass", "LEMS_regContests", "LEMS_regHousing", 
	 "LEMS_regPayment"];
  for (var i = 0; i < LEMS_Layers.length; i++) {
    LEMS_hideLayer(LEMS_Layers[i]);
  }
  updatePayment();
}

function LEMS_showAll() {
  var LEMS_Layers =
        ["LEMS_regInstr", "LEMS_regPricing", "LEMS_regInfo",
         "LEMS_regClass", "LEMS_regContests", "LEMS_regHousing",
         "LEMS_regPayment"];
  for (var i = 0; i < LEMS_Layers.length; i++) {
    LEMS_showLayer(LEMS_Layers[i]);
  }
  updatePayment();
}



function LEMS_show(whichLayer) {
  if (shortForm) {
    LEMS_hideAll();
    LEMS_showLayer(whichLayer);
  }
}

function LEMS_toggleShortLong() {
  return;
  for (var i = 0; i< document.styleSheets.length; i++) {
    var rules = document.styleSheets.item(i);
    for (var j = 0; j < rules.length; j++) {
    }
  }
}