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

function insertAfter(newElement,targetElement) {
  var parent = targetElement.parentNode;
  if (parent.lastChild == targetElement) {
    parent.appendChild(newElement);
  } else {
    parent.insertBefore(newElement,targetElement.nextSibling);
  }
}

function addClass(element,value) {
  if (!element.className) {
    element.className = value;
  } else {
    newClassName = element.className;
    newClassName+= " ";
    newClassName+= value;
    element.className = newClassName;
  }
}

function getElementsByClass(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}

function trim(string) {

    return string.replace(/^\s+|\s+$/g, '');

}

function newwin() {

	if (!document.getElementsByTagName) return false;

	var lnks = document.getElementsByTagName('a');

	for (var i=0;i<lnks.length;i++) {

		if (lnks[i].className.indexOf('newwin') > -1 || lnks[i].className.indexOf('external') > -1) {

			lnks[i].onclick = function () { window.open(this.getAttribute('href')); return false; };
			lnks[i].onkeypress = lnks[i].onclick;

		}

	}

    return true;

}

addLoadEvent(newwin);