function showHide(id) {
    var obj = document.getElementById(id);
    if (obj.style.display == "none") {
        //obj.style.display = "block";
        Effect.SlideDown(id);
    } else {
    	Effect.SlideUp(id);
        //obj.style.display = "none";
    }

}

function addCode(obj, code) {
	var object = document.getElementById(obj);
 	object.value += ' ' + code;
}



function getElementsByClassName(classname, node) {
  if(!node) node = document.getElementsByTagName("body")[0];
  var a = [];
  var re = new RegExp('\\b' + classname + '\\b');
  var els = node.getElementsByTagName("*");
  for(var i=0,j=els.length; i<j; i++)
    if(re.test(els[i].className))a.push(els[i]);
  return a;
}