JavaScript Helper Functions
When you cannot use a JavaScript toolkit like jQuery these functions may come in handy. However, they do not work in IE.
Node.prototype.insertAfter = function(newNode, refNode) { var result = null; if(refNode.nextSibling) { result = this.insertBefore(newNode, refNode.nextSibling); } else { result = this.appendChild(newNode); } return result; } Node.prototype.getElementByClass = function(className, count) { var result = null; for(var i = 0; i < this.childNodes.length; i++) { var classCount = 0; if(this.childNodes[i].className == className) { if(classCount == count) { result = this.childNodes[i]; break; } classCount++ } } return result; }