Mine

  	  	 var elms = document.getElementById("puzzle").getElementsByTagName("td");  	  	 var md5 = "";  	  	 for(var i = 0; i < elms.length; i++) {  	  	 	var out = "";  	  	 	for(var o = (elms[i].getElementsByTagName("img")[0].src.length-1); o > 0; o--) {  	  	 	   if(elms[i].getElementsByTagName("img")[0].src[o] == "/") break;  	  	 	   out = out + elms[i].getElementsByTagName("img")[0].src[o];  	  	 	}  	  	 	md5 = md5 + out;  	  	 }  	  	 alert(md5);