function getElementByClassName(el, className) 
{
  var i, tmp;

  if (el.className == className) return el;

  // Search for a descendant element assigned the given class.
  for (i = 0; i < el.childNodes.length; i++) 
	{
    tmp = getElementByClassName(el.childNodes[i], className);
    if (tmp != null) return tmp;
  }
  return null;
}

function checkElementOwnTo(owner,el)
{
	if (!el) return false;				// Null object
	
	// Same objects
	if (owner==el) return true;		// Found object

	// Not same object but same class: Stop Checking.
	if (el.className && owner.className==el.className) return false;

	return checkElementOwnTo(owner,el.parentElement);
}

function getElementsByTagNameOwnTo(owner,tagName)
{
	j=0;
	selectList=new Array();

  elList=document.getElementsByTagName(tagName);
  for (var i=0,j=0; i < elList.length; i++)
		if (checkElementOwnTo(owner,elList[i]))
			selectList[j++] = elList[i];

	return selectList;
}

function url_decode(url)
{
  if (browser.isNS) 
	{
		url = str_replace('%27',unescape('%27'),url);
		url = str_replace('%28',unescape('%28'),url);
		url = str_replace('%29',unescape('%29'),url);
	}
	return url;
}

function str_replace(text,by,string) 
{
	// Replaces text with by in string
	var strLength = string.length, txtLength = text.length;
	if ((strLength == 0) || (txtLength == 0)) return string;

	var i = string.indexOf(text);
	if ((!i) && (text != string.substring(0,txtLength))) return string;
	if (i == -1) return string;

	var newstr = string.substring(0,i) + by;
	if (i+txtLength < strLength) newstr +=str_replace(text,by,string.substring(i+txtLength,strLength));
	return newstr;
}

function url_replace(text,by,url)
{
	url2='';
	for (i=0; i<url.length; i++)
	{
		c=url.charAt(i);
		if (url.charAt(i)=='~') c="'";
		if (url.substr(i,text.length)==text) 
		{
			url2=url2+by;
			i+=text.length-1;
		}
		else
			url2=url2+c;
	}
	return (url2);
}

function setPointer(obj,color)
{
	if (color=='') 
		color=obj.getAttribute('saveColor');
	else
		obj.setAttribute('saveColor',obj.style.backgroundColor);

  if (obj.tagName=="TR")
	{
		var cells = obj.getElementsByTagName('td');
		var l = cells.length;
		for (var c = 0; c < l; c++) 
			cells[c].style.backgroundColor = color;

		return true;
	}
	else if (obj.tagName=="TD")
	{
		obj.style.backgroundColor = color;
		return true;
	}
	
	return false;
}

function ie55andup()
{
	var agent      = navigator.userAgent.toLowerCase();
	var major      = parseInt(navigator.appVersion);
	var is_ie      = ((agent.indexOf("msie") != -1) && (agent.indexOf("opera") == -1));
	var is_ie3     = (is_ie && (major < 4));
	var is_ie4     = (is_ie && (major == 4) && (agent.indexOf("msie 4")!=-1) );
	var is_ie4up   = (is_ie && (major >= 4));
	var is_ie5     = (is_ie && (major == 4) && (agent.indexOf("msie 5.0")!=-1) );
	var is_ie5_5   = (is_ie && (major == 4) && (agent.indexOf("msie 5.5") !=-1));
	var is_ie5up   = (is_ie && !is_ie3 && !is_ie4);
	var is_ie5_5up = (is_ie && !is_ie3 && !is_ie4 && !is_ie5);
	return(is_ie5_5up);
}