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);