function addClass(what, className){
  what.className+=" "+className;
}
function removeClass(what, className){
  var classes=what.className.split(" ");
  var newClasses=new Array();
  for(var i=0;i<classes.length;i++)
    if (classes[i]!=className)
      newClasses[newClasses.length]=classes[i];
  what.className=newClasses.join(" ");
}
function over(what) {
  addClass(what,"over");
}

function out(what) {
  removeClass(what,"over");
}
function cleanURL(url){
    return encodeURIComponent(url.toLowerCase().replace(/[\%\,\.\[\]\(\)]/g,"").replace(/[ \-\/\:]/g,"_").replace(/[\"\']/g,"").replace(/___/g,"_").replace(/__/g,"_"))+".html";
}
function showLinkTip(link_id){
    return false;
    TagToTip("tooltip_div", LEFT, false, BGCOLOR, '#FFF5C6', FADEIN, 0, WIDTH, 500);
    new HttpRequest().start("link_tooltip.html?link_id="+link_id,
                            function(responseText){
                                document.getElementById("tooltip_div").innerHTML=responseText;
                            }
                           );
}
function showSourceFeedStoryTip(sourcefeedstory_id){
    new HttpRequest().start("sourcefeedstory_tooltip.html?sourcefeedstory_id="+sourcefeedstory_id,
                            function(responseText){
                                document.getElementById("tooltip_div").innerHTML=responseText;
                                TagToTip("tooltip_div", LEFT, false, BGCOLOR, '#FFF5C6', FADEIN, 0, WIDTH, 500);
                            }
                           );
}