/**
 * This script contains some general functions needed on more locations
 */


// Returns an array of all elements with given class
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;
}