Getelementbyclass need a little help with this

I am trying to write a function that will allow me to manipulate all of the elements on a page with the same class. Something like getElementByClass. If anyone has any ideas, please send them this way.

Thanks in advance.
ReAtum

This is what I have, but it is giving me a headache. When I define a classname, and have one element with that classname on the page, it alerts me that it sees 8 elements with that classname. I am @ a loss.

var elArr = new Array();function getElementByClassName(classname) {var allEl = document.all;for (var i=0; i < allEl.length; i++) {if (allEl[i].className == classname) {elArr[i] = allEl[i];}}alert (elArr.length);}

if anyone has any ideas, I would appreciate it.
and before anyone bugs on me, it is only for IE, so that is why I only have doc.all.



Edited October 13, 2005 by rejected (see edit history)

I figured it out...

function getElementsByClassName(classname) {     if (document.getElementsByTagName) {          var els = document.getElementsByTagName("*");          var c = new RegExp('/b^|' + classname + '|$/b');          final = new Array();          var n=0;          for (var i=0; i < els.length; i++) {               if (els[i].className) {                    if(c.test(els[i].className)) {                    final[n] = els[i];                    n++;                    }               }           }          return final;     } else{return false;}}

I changed to getElementsByTagName to make it crossbrowser compatible, and used the regex to allow for the use of multiple classnames on an element.
If anybody knows how to make this function work like a method (i.e. document.getElementsByClassName(classname)) please help. Also the RegExp is a little weak and can get confused, so if you can improve on that also, please, be my guest.

even a bit of code

Getelementbyclass

 

Another one from some site

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;	}

Thanks for code buddies....The codes listed over here are very helpful for me. Iam looking for some similar code like this for a long tiiime. Thanks once more.