function swapClass(me,myClass) {
 me.className=myClass; 
}

function swapImage(me,myGif) {
 me.setAttribute('src', 'images/'+myGif)
}

function swapImageById(myID,myGif) {
 var myID = document.getElementById(myID);
 myID.setAttribute('src', 'images/'+myGif)
}

function swapColour(me,myHex) {
 me.style.color=myHex;
}

function swapBGColour(me,myHex) {
 me.bgcolor=myHex;
}

function swapBGColourID(myID,myHex) {
 var myID = document.getElementById(myID);
 myID.style.backgroundColor=myHex;
}

function readCookie(name) {
 var nameEQ = name + "=";
 var ca = document.cookie.split(';');
 for(var i=0;i < ca.length;i++) {
  var c = ca[i];
  while (c.charAt(0)==' ') c = c.substring(1,c.length);
  if (c.indexOf(nameEQ) == 0) {
   return unescape(c.substring(nameEQ.length,c.length)).replace(/\+/g, ' ');
  }
 }
 return "";
}

function writeCookie(name,value) {
 var date = new Date();
 date.setTime(date.getTime()+(365*24*60*60*1000));
 var expires = "; expires="+date.toGMTString();
 document.cookie = name+"="+value+expires+"; path=/";
}


function displayDiv(divId,showhide) {
 var myDiv = document.getElementById(divId)
 if (showhide=='show') {
  myDiv.style.display="block";
 } else if (showhide=='hide') {
  myDiv.style.display="none";
 }
}