Safari grayscale jquery

grayscale

if (navigator.userAgent.indexOf('Safari') != -1 && navigator.userAgent.indexOf('Chrome') == -1) {
    

	var grayscale=function(){var e={colorProps:["color","backgroundColor","borderBottomColor","borderTopColor","borderLeftColor","borderRightColor","backgroundImage"],externalImageHandler:{init:function(e,t){if(e.nodeName.toLowerCase()==="img"){}else{r(e).backgroundImageSRC=t;e.style.backgroundImage=""}},reset:function(e){if(e.nodeName.toLowerCase()==="img"){}else{e.style.backgroundImage="url("+(r(e).backgroundImageSRC||"")+")"}}}},t=function(){try{window.console.log.apply(console,arguments)}catch(e){}},n=function(e){return(new RegExp("https?://(?!"+window.location.hostname+")")).test(e)},r=function(){var e=[0],t="data"+ +(new Date);return function(n){var r=n[t],i=e.length;if(!r){r=n[t]=i;e[r]={}}return e[r]}}(),i=function(e,t,n){var s=document.createElement("canvas"),u=s.getContext("2d"),a=e.naturalHeight||e.offsetHeight||e.height,f=e.naturalWidth||e.offsetWidth||e.width,l;s.height=a;s.width=f;u.drawImage(e,0,0);try{l=u.getImageData(0,0,f,a)}catch(c){}if(t){i.preparing=true;var h=0;(function(){if(!i.preparing){return}if(h===a){u.putImageData(l,0,0,0,0,f,a);n?r(n).BGdataURL=s.toDataURL():r(e).dataURL=s.toDataURL()}for(var t=0;t<f;t++){var c=(h*f+t)*4;l.data[c]=l.data[c+1]=l.data[c+2]=o(l.data[c],l.data[c+1],l.data[c+2])}h++;setTimeout(arguments.callee,0)})();return}else{i.preparing=false}for(var h=0;h<a;h++){for(var p=0;p<f;p++){var d=(h*f+p)*4;l.data[d]=l.data[d+1]=l.data[d+2]=o(l.data[d],l.data[d+1],l.data[d+2])}}u.putImageData(l,0,0,0,0,f,a);return s},s=function(e,t){var n=document.defaultView&&document.defaultView.getComputedStyle?document.defaultView.getComputedStyle(e,null)[t]:e.currentStyle[t];if(n&&/^#[A-F0-9]/i.test(n)){var r=n.match(/[A-F0-9]{2}/ig);n="rgb("+parseInt(r[0],16)+","+parseInt(r[1],16)+","+parseInt(r[2],16)+")"}return n},o=function(e,t,n){return parseInt(.2125*e+.7154*t+.0721*n,10)},u=function(e){var t=Array.prototype.slice.call(e.getElementsByTagName("*"));t.unshift(e);return t};var a=function(t){if(t&&t[0]&&t.length&&t[0].nodeName){var f=Array.prototype.slice.call(t),l=-1,c=f.length;while(++l<c){a.call(this,f[l])}return}t=t||document.documentElement;if(!document.createElement("canvas").getContext){t.style.filter="progid:DXImageTransform.Microsoft.BasicImage(grayscale=1)";t.style.zoom=1;return}var h=u(t),p=-1,d=h.length;while(++p<d){var v=h[p];if(v.nodeName.toLowerCase()==="img"){var m=v.getAttribute("src");if(!m){continue}if(n(m)){e.externalImageHandler.init(v,m)}else{r(v).realSRC=m;try{v.src=r(v).dataURL||i(v).toDataURL()}catch(g){e.externalImageHandler.init(v,m)}}}else{for(var y=0,b=e.colorProps.length;y<b;y++){var w=e.colorProps[y],E=s(v,w);if(!E){continue}if(v.style[w]){r(v)[w]=E}if(E.substring(0,4)==="rgb("){var S=o.apply(null,E.match(/\d+/g));v.style[w]=E="rgb("+S+","+S+","+S+")";continue}if(E.indexOf("url(")>-1){var x=/\(['"]?(.+?)['"]?\)/,T=E.match(x)[1];if(n(T)){e.externalImageHandler.init(v,T);r(v).externalBG=true;continue}try{var N=r(v).BGdataURL||function(){var e=document.createElement("img");e.src=T;return i(e).toDataURL()}();v.style[w]=E.replace(x,function(e,t){return"("+N+")"})}catch(g){e.externalImageHandler.init(v,T)}}}}}};a.reset=function(t){if(t&&t[0]&&t.length&&t[0].nodeName){var i=Array.prototype.slice.call(t),s=-1,o=i.length;while(++s<o){a.reset.call(this,i[s])}return}t=t||document.documentElement;if(!document.createElement("canvas").getContext){t.style.filter="progid:DXImageTransform.Microsoft.BasicImage(grayscale=0)";return}var f=u(t),l=-1,c=f.length;while(++l<c){var h=f[l];if(h.nodeName.toLowerCase()==="img"){var p=h.getAttribute("src");if(n(p)){e.externalImageHandler.reset(h,p)}h.src=r(h).realSRC||p}else{for(var d=0,v=e.colorProps.length;d<v;d++){if(r(h).externalBG){e.externalImageHandler.reset(h)}var m=e.colorProps[d];h.style[m]=r(h)[m]||""}}}};a.prepare=function(e){if(e&&e[0]&&e.length&&e[0].nodeName){var t=Array.prototype.slice.call(e),o=-1,f=t.length;while(++o<f){a.prepare.call(null,t[o])}return}e=e||document.documentElement;if(!document.createElement("canvas").getContext){return}var l=u(e),c=-1,h=l.length;while(++c<h){var p=l[c];if(r(p).skip){return}if(p.nodeName.toLowerCase()==="img"){if(p.getAttribute("src")&&!n(p.src)){i(p,true)}}else{var d=s(p,"backgroundImage");if(d.indexOf("url(")>-1){var v=/\(['"]?(.+?)['"]?\)/,m=d.match(v)[1];if(!n(m)){var g=document.createElement("img");g.src=m;i(g,true,p)}}}}};return a}();


    var $images = $("img"),
    	imageCount = $images.length,
    	counter = 0;

    // One instead of on, because it need only fire once per image
    $images.one("load",function(){
        // increment counter every time an image finishes loading
        counter++;
        if (counter == imageCount) {
            grayscale($images);
            $images.on('mouseenter', function(){

            	grayscale.reset($(this));
          
            }).on('mouseleave', function(){

            	grayscale($(this));
            });
                
   		 }
    }).each(function () {
        if (this.complete) {
            $(this).trigger("load");
        }
    });

}