function showSidebarAnnotation(words) {
  popup = document.getElementById(words.id+"-popup");
  popup.style.display = "Block";
}
function hideSidebarAnnotation(words) {
  document.getElementById(words.id+"-popup").style.display = "None";
}


function showAnnotation(words) {
    popup = document.getElementById(words.id+"-popup");
    popup.style.top = (words.offsetTop + 24) + "px";
    popup.style.left = (words.offsetLeft) + "px";
    popup.style.display = "Block";
}

function hideAnnotation(words) {
    document.getElementById(words.id+"-popup").style.display = "None";
}

function keyPressHandler(e) {
var kC  = (window.event) ? event.keyCode : e.keyCode;
var Esc = (window.event) ? 27 : e.DOM_VK_ESCAPE
if((kC==Esc)&&(languagechanger)) {
    hideLanguageChanger();
}
}

function swapLanguageChanger() {
    var parent = document.getElementById('language-changer');
    var from = document.getElementById('change_from_language');
    var to = document.getElementById('change_to_language');
    var temp = from.value;
    from.value = to.value;
    to.value = temp;
}

function showSidebar() {
	popup = document.getElementById('context_desc')
	popup.style.top = 0;
	popup.style.left = 0;
	popup.style.display="Block"; 
}
function hideSidebar() {
	document.getElementById('context_desc').style.display="None"; 
}