// show one element hide another
function showHide(show,hide){
      document.getElementById(hide).style.display = "none";
      document.getElementById(show).style.display = "block";
}

// toggle show/hide on single element
function toggleShowHide(element){
      document.getElementById(show).style.display = "none";
      document.getElementById(show).style.display = "block";
}



// Change class name
function setClassName(element,className){
      document.getElementById(element).className = className;
}