// JavaScript Document
function checkSafari(){
var isSafari = false;
	if( window.devicePixelRatio && window.getMatchedCSSRules && !window.Opera){ 
		isSafari = !!window.getMatchedCSSRules(document.documentElement,''); 
		if(isSafari){
			$(document.body).addClass('safari');
		}
	} 
}