zap images toggle

javascript:(function(){%20function%20toArray%20(c){%20var%20a,%20k;%20a=new%20Array;%20for%20(k=0;%20k%20<%20c.length;%20++k)a[k]=c[k];return%20a;%20}%20var%20images,%20img;%20images=toArray(document.images);%20for%20(var%20i=0;%20i%20<%20images.length;%20++i)%20{%20img=images[i];%20if(images[0].className.indexOf("zapimages")!=-1)%20{%20var%20alts=document.querySelectorAll('.zapimagesalt');%20var%20elementsToRemove%20=%20[];%20for(var%20j%20=%200;%20j%20<%20alts.length;%20j++)%20{%20alts[j].parentNode.removeChild(alts[j]);%20}%20img.style.display%20=%20img.style.display.replace(/none/,'');%20img.className%20=%20img.className.replace(/zapimages/g,%20'');%20}%20else%20{%20var%20altText=%20document.createElement("span");%20altText.innerHTML=img.alt;%20altText.className%20=%20"zapimagesalt";%20img.className%20=%20img.className%20+%20"%20zapimages";%20img.style.display="none";%20img.parentNode.insertBefore(altText,img);%20}%20}%20})();