function $(tagId){
	return document.getElementById(tagId);
}

function getElementsByClassArray(searchClass) {
	
    var classElements = new Array();
    var allElements = document.getElementsByTagName("*");
    for (i = 0, j = 0; i < allElements.length; i++) {
	if (allElements[i].className.indexOf(searchClass)!=-1) {
	    classElements[j] = allElements[i];
	    j++;
	}
    }
    return classElements;
}