/*
 * Contains any extra code that falls outside XAJAX
*/
function addOption(selectId, val, txt) {
        if((val == 0) || (txt == 0)) {
                val = '';
                txt = '';
            }
            var objOption = new Option(txt, val);
            document.getElementById(selectId).options.add(objOption);
    }
/*
 * Size control inspired by TikiWiki. This displays the buttons.
 */
function showSizeCtl(){
  if(document.getElementById) {
    var textarea = document.getElementById('wiki_content');
    var hgt = getCookie('MendeTxtSize');
    if(hgt == null){
      textarea.style.height = '300px';
    }else{
      textarea.style.height = hgt;
    }
    document.writeln('<a href="javascript:sizeCtl(100)"><img src="images/larger.gif" width="20" height="20" border="0"></a>');
    document.writeln('<a href="javascript:sizeCtl(-100)"><img src="images/smaller.gif" width="20" height="20" border="0"></a>');
  }
}

/*
 * This sets the vertical size of the editbox
 */
function sizeCtl(val){
  var textarea = document.getElementById('wiki_content');
  var height = parseInt(textarea.style.height.substr(0,textarea.style.height.length-2));
  height += val;
  textarea.style.height = height+'px';
  
  var now = new Date();
  fixDate(now);
  now.setTime(now.getTime() + 365 * 24 * 60 * 60 * 1000); //expire in a year
  setCookie('MendeTxtSize',textarea.style.height,now);
}

/*
 * This sets a cookie by JavaScript
 *
 * @see http://www.webreference.com/js/column8/functions.html
 */
function setCookie(name, value, expires, path, domain, secure) {
  var curCookie = name + "=" + escape(value) +
      ((expires) ? "; expires=" + expires.toGMTString() : "") +
      ((path) ? "; path=" + path : "") +
      ((domain) ? "; domain=" + domain : "") +
      ((secure) ? "; secure" : "");
  document.cookie = curCookie;
}

/*
 * This reads a cookie by JavaScript
 *
 * @see http://www.webreference.com/js/column8/functions.html
 */
function getCookie(name) {
  var dc = document.cookie;
  var prefix = name + "=";
  var begin = dc.indexOf("; " + prefix);
  if (begin == -1) {
    begin = dc.indexOf(prefix);
    if (begin != 0) return null;
  } else
    begin += 2;
  var end = document.cookie.indexOf(";", begin);
  if (end == -1)
    end = dc.length;
  return unescape(dc.substring(begin + prefix.length, end));
}

/*
 * This is needed for the cookie functions
 *
 * @see http://www.webreference.com/js/column8/functions.html
 */
function fixDate(date) {
  var base = new Date(0);
  var skew = base.getTime();
  if (skew > 0)
    date.setTime(date.getTime() - skew);
}

function changeCSS(tdId,cssClass) {
	var foo = document.getElementById(tdId);
	var cssCurrent = cssClass;
	if (cssCurrent == "toggle") {
		if (foo.className == "show")
			foo.className = "hide";
		else
			foo.className = "show";
	}
	else
		foo.className = cssClass;
}