[JS] document.getElementsByClassName()

talk open source
1

heres a equivelent of document.getElementsByTagName(), except it gets all the elements with the specified class name.
[AS]
var IE = false;
if(navigator.appName.indexOf(“IE”)!=-1 && !document.hasAttribute) IE = true;

/**
*@description: gets all elements by the specified class name
*@param: name, a string specifieing the class name you want to grab
*@returns: an array of found elements if successfull, false on failure
**/
document.getElementsByClassName = function(name) {
var findStack = [];

function checkChildren(ob) {
	for(var a = 0; a<ob.childNodes.length; a++) {
		if(ob.childNodes[a].nodeType!=1) 
			continue;
		if(((IE)?ob.childNodes[a].attributes['class'].nodeValue:ob.childNodes[a].getAttribute("class"))==name)
			findStack.push(ob.childNodes[a]);
		if(ob.childNodes[a].hasChildNodes()) 
			checkChildren(ob.childNodes[a]);
	}
}

checkChildren(this.getElementsByTagName("body")[0]);

if(findStack.length==0) return false;

return findStack;

}
[/AS]