function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}

function highlightPage() {
  if (!document.getElementsByTagName) return false;
  if (!document.getElementById) return false;
  if (!document.getElementById("navigation")) return false;
  var nav = document.getElementById("navigation");
  var links = nav.getElementsByTagName("a");
  var active = false;
  for (var i=0; i<links.length; i++) {
    var linkurl = links[i].getAttribute("href");
    var currenturl = window.location.href;
    if (currenturl.indexOf(linkurl) != -1) {
      links[i].className = "active";
      var linktext = links[i].lastChild.nodeValue.toLowerCase();
      document.body.setAttribute("id",linktext);
      var active = true;
    }
  }
  if(!active){ 
    links[0].className = "active";
  }
}

function colortable() {
	if (!document.getElementsByTagName) return false;
	if (!document.getElementById) return false;
 	if (!document.getElementById("rates")) return false;
	var rows = document.getElementById('rates').getElementsByTagName('tr'); 
	for ( i=0; i<rows.length; i++ ) {
		if(i % 2 == 0) {
			rows[i].className = "even";
		}else{
			rows[i].className = "odd";
		}	
	}
}


addLoadEvent(highlightPage);
addLoadEvent(colortable);