var viewRollover = true;
if (navigator.userAgent.indexOf('Safari') > -1) {
	viewRollover = false;
}
function rollover(_img) {
	if (viewRollover == true) {
		var _src = _img.src
		if(_src.indexOf("default") >= 1) {
			var urlImg   = _img.src;
		      urlImg   = urlImg.replace('default', 'over');
		      _img.src = urlImg;
		} else {
			var urlImg = _img.src;
		      urlImg = urlImg.replace('over', 'default');
		    _img.src = urlImg;
		}
	}
}

/*
function myOver(_img) {
	var urlImg   = _img.src;
	    urlImg   = urlImg.replace('default', 'over');
	    _img.src = urlImg;
}

function myOut(_img) {
	var urlImg = _img.src;
	    urlImg = urlImg.replace('over', 'default');
	    _img.src = urlImg;
}
*/