function updateName() {
  document.getElementById("nameDisplay").innerHTML = 
    document.getElementById("author").value;
}

function updateComment() {
  document.getElementById("commentDisplay").innerHTML = 
    superTextile(document.getElementById("showcomment").value);
}

function trim(str) {
  return str.replace(/^\s+/,'').replace(/\s+$/,'');
}

function bookmarkLink(pre, anchor) {
  if(window.external) {
    document.write(pre + '<a href="javascript:addToFavorites()" title="Add to Favorites">' + anchor +
		   '</a>');
  }
}

function addToFavorites() {
  if(window.external) {
    window.external.AddFavorite(window.location, document.title);
  }
}

function submitComment() {
  document.getElementById("realcomment").value = 
    superTextile(document.getElementById("showcomment").value);
  return true;
}

/*
   This function is from Jeff Minard - http://www.creatimation.net/
    adapted from code by Stuart Langridge at http://www.kryogenix.org/
 */
 
function superTextile(s) {
    var r = s;

    // HTML entities first
    r = r.replace(/&/gm, '&amp;');
    r = r.replace(/</gm, '&lt;');
    r = r.replace(/>/gm, '&gt;');

    // quick tags first
    qtags = [['\\*', 'strong'],
             ['\\?\\?', 'cite'],
             ['\\+', 'ins'],  //fixed
             ['~', 'sub'],   
             ['\\^', 'sup'], // me
             ['@', 'code']];

    for (var i=0;i<qtags.length;i++) {
        ttag = qtags[i][0]; htag = qtags[i][1];
        re = new RegExp(ttag+'\\b(.+?)\\b'+ttag,'g');
        r = r.replace(re,'<'+htag+'>'+'$1'+'</'+htag+'>');
    }
    // underscores count as part of a word, so do them separately
    re = new RegExp('\\b_(.+?)_\\b','g');
    r = r.replace(re,'<em>$1</em>');
	
	//jeff: so do dashes
    re = new RegExp('[\s\n]-(.+?)-[\s\n]','g');
    r = r.replace(re,'<del>$1</del>');

    // links
    re = new RegExp('"\\b(.+?)\\(\\b(.+?)\\b\\)":([^\\s]+)','g');
    r = r.replace(re,'<a href="$3" title="$2">$1</a>');
    re = new RegExp('"\\b(.+?)\\b":([^\\s]+)','g');
    r = r.replace(re,'<a href="$2">$1</a>');

    // images
    re = new RegExp('!\\b(.+?)\\(\\b(.+?)\\b\\)!','g');
    r = r.replace(re,'<img src="$1" alt="$2">');
    re = new RegExp('!\\b(.+?)\\b!','g');
    r = r.replace(re,'<img src="$1">');
    
    // block level formatting
	
		// Jeff's hack to show single line breaks as they should.
		// insert breaks - but you get some....stupid ones
	    re = new RegExp('(.*)\n([^#\*\n].*)','g');
	    r = r.replace(re,'$1<br />$2');
		// remove the stupid breaks.
	    re = new RegExp('\n<br />','g');
	    r = r.replace(re,'\n');
	
    lines = r.split('\n');
    nr = '';
    for (var i=0;i<lines.length;i++) {
        line = lines[i].replace(/\s*$/,'');
        changed = 0;
        if (line.search(/^\s*bq\.\s+/) != -1) { line = line.replace(/^\s*bq\.\s+/,'\t<blockquote>')+'</blockquote>'; changed = 1; }
		
		// jeff adds h#.
        if (line.search(/^\s*h[1-6]\.\s+/) != -1) { 
	    	re = new RegExp('h([1-6])\.(.+)','g');
	    	line = line.replace(re,'<h$1>$2</h$1>');
			changed = 1; 
		}
		
		if (line.search(/^\s*\*\s+/) != -1) { line = line.replace(/^\s*\*\s+/,'\t<liu>') + '</liu>'; changed = 1; } // * for bullet list; make up an liu tag to be fixed later
        if (line.search(/^\s*#\s+/) != -1) { line = line.replace(/^\s*#\s+/,'\t<lio>') + '</lio>'; changed = 1; } // # for numeric list; make up an lio tag to be fixed later
        if (!changed && (line.replace(/\s/g,'').length > 0)) line = '<p>'+line+'</p>';
        lines[i] = line + '\n';
    }
	
    // Second pass to do lists
    inlist = 0; 
	listtype = '';
    for (var i=0;i<lines.length;i++) {
        line = lines[i];
        if (inlist && listtype == 'ul' && !line.match(/^\t<liu/)) { line = '</ul>\n' + line; inlist = 0; }
        if (inlist && listtype == 'ol' && !line.match(/^\t<lio/)) { line = '</ol>\n' + line; inlist = 0; }
        if (!inlist && line.match(/^\t<liu/)) { line = '<ul>' + line; inlist = 1; listtype = 'ul'; }
        if (!inlist && line.match(/^\t<lio/)) { line = '<ol>' + line; inlist = 1; listtype = 'ol'; }
        lines[i] = line;
    }

    r = lines.join('\n');
	// jeff added : will correctly replace <li(o|u)> AND </li(o|u)>
    r = r.replace(/li[o|u]>/g,'li>');

    return r;
}

function showTextileHelp() {
  document.getElementById('commentmenu').style.visibility='visible';
}

function hideTextileHelp() {
  document.getElementById('commentmenu').style.visibility='hidden';
}

function setActiveStyleSheet(title, store) {
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && 
       a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title) {
	a.disabled = false;
      }
    }
  }
  if(store) {
    createCookie("style", title, 365);
  }
}

function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && 
       a.getAttribute("title") && !a.disabled) {
      return a.getAttribute("title");
    }
  }
  return null;
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 &&
       a.getAttribute("rel").indexOf("alt") == -1 && 
       a.getAttribute("title")) {
      return a.getAttribute("title");
    }
  }
  return null;
}

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

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 c.substring(nameEQ.length,c.length);
  }
  return null;
}

window.onload = function(e) {
  var cookie = readCookie("style");
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title, false);
}

var origH = -1;
function setFooter() {
  if(!document.getElementById || !document.body.offsetHeight) {
    return;
  }
  if(origH == -1) {
    origH = document.getElementById('nomadig-footer').offsetTop;
  }
  var wh = (typeof(window.innerHeight)=='number') ? window.innerHeight : 
    (document.documentElement && document.documentElement.clientHeight) ?
    document.documentElement.clientHeight :
    (document.body && document.body.clientHeight) ? 
    document.body.clientHeight : 0;
  var ch = origH;
  var fm = (ch < wh - 30) ? wh - 30 : ch;
  if(fm != ch) {
    document.getElementById('nomadig-cn').style.height = (fm - 175) + 'px';
  }
}

function findPosY(obj) {
  var curtop = 0;
  if (obj.offsetParent) {
    while (obj.offsetParent) {
      curtop += obj.offsetTop
      obj = obj.offsetParent;
    }
  } else if (obj.y) {
    curtop += obj.y;
  }
  return curtop;
}

var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title, false);

  //window.onload=setFooter;
  //window.onresize=setFooter;