LIB_PATH = document.getElementsByTagName("script")[document.getElementsByTagName("script").length -1].src.replace(/common.js/, "")


function addStyle(style){
	document.write("<style>"+style+"<\/style>")
}



document.getElementsByClassName = function(className){
	var els
	var collection = new Array()
	if (document.all)
	{
		els = document.all
	}
	else if (document.getElementsByTagName)
	{
		els = document.getElementsByTagName("*")
	}

	for (var i=0; i<els.length; i++)
	{
		if (els[i].className == className) collection[collection.length] = els[i]
	}
	return collection
}

//import a js file from the lib
function includelib(src)
{
	return include(LIB_PATH + src)
}

//include (import) another js file if it has not already been loadeded
function include(src)
{
	//this little trick resolves the src url to be relative to the document
	var a = document.createElement("a")
	a.href = src
	src = a.href 
	
	var included = false
	for (var i=0; i<document.getElementsByTagName("script").length; i++){
		if (document.getElementsByTagName("script")[i].src == src){
			included = true
			break
		}
	}
	if (!included){
		//scrap this until it works in safari
		/*
		script = document.createElement("script");
		script.src = src
		document.getElementsByTagName("head")[0].appendChild(script)
		*/
		
		//use the hacky method instead 
		document.write("<scr" + "ipt src='" + src + "'></scr" + "ipt>");
	}
	return included
}




//http://simon.incutio.com/archive/2004/05/26/addLoadEvent
function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}

function get(variable) {
  //from http://www.activsoftware.com/code_samples/code.cfm/CodeID/59/JavaScript/Get_Query_String_variables_in_JavaScript
  var query = window.location.search.substring(1);
  var vars = query.split("&");
  for (var i=0;i<vars.length;i++) {
    var pair = vars[i].split("=");
    if (pair[0] == variable) {
      return pair[1];
    }
  } 
}

function zap(el){
	if (el && el.style) el.style.display = "none"
}

function unzap(el){
	if (el && el.style) el.style.display = ""
}

//http://www.scottandrew.com/weblog/articles/cbs-events
function addEvent(obj, evType, fn, useCapture){
  if (obj.addEventListener){
    obj.addEventListener(evType, fn, useCapture);
    return true;
  } else if (obj.attachEvent){
    var r = obj.attachEvent("on"+evType, fn);
  	}
	return r;
}

function startIeFix(){
  if(isIE()){
    document.write('<div id="bo_ns_id_' + bo_ns_id + '"><!-- ');
  }
}

function endIeFix(){
  if(isIE()){
    document.write('</div>');
    var theObject = document.getElementById("bo_ns_id_" + bo_ns_id++);
    var theCode = theObject.innerHTML;
    theCode = theCode.substring(4 ,9+theCode.indexOf("</object>"))
    document.write(theCode);
  }
}

function isIE(){
  var strBrowser = navigator.userAgent.toLowerCase();
  if(strBrowser.indexOf("msie") > -1 && strBrowser.indexOf("mac") < 0){
    return true;
  }else{
    return false;
  }
}

var bo_ns_id = 0;