Add/remove class pessoal

my_add_remove_class

// class manipulation from http://www.openjs.com/scripts/dom/class_manipulation.php
function hasClass(ele,cls) {
    return ele.className.match(new RegExp('(\\s|^)'+cls+'(\\s|$)'));
}

function addClass(ele,cls) {
    if (!this.hasClass(ele,cls)) ele.className += " "+cls;
}

function removeClass(ele,cls) {
	if( cls.split(' ').length > 1 ){
		var clss = cls.split(' ');
		for (var i = clss.length - 1; i >= 0; i--) {
			removeClass( ele, clss[i] );
		}
	}else{
	    if (hasClass(ele,cls)) {
	        var reg = new RegExp('(\\s|^)'+cls+'(\\s|$)');
	        ele.className=ele.className.replace(reg,'');
	    }		
	}
}