document.addEventListener("DOMContentLoaded",function(){var buttons=document.querySelectorAll("[data-rsfp-hashcash]");if(buttons.length>0){for(var i=0;i<buttons.length;i++){var button=buttons[i];(function(button){button.addEventListener("click",function(){var iterations=Math.pow(100,parseInt(this.getAttribute("data-hashcash-level")));var text=this.getAttribute("data-hashcash-text");var name=this.getAttribute("data-hashcash-name");var count=0;var pattern=new RegExp("^0{"+parseInt(this.getAttribute("data-hashcash-level"))+"}");var container=this.querySelector(".hashcash");if(!container){return}if(container.classList.contains("hashcash__working")||container.classList.contains("hashcash__done")){return}var input=document.createElement("input");input.type="hidden";input.name=name;this.parentNode.appendChild(input);container.classList.remove("hashcash__pending");container.classList.add("hashcash__working");window.setTimeout(function(){while(iterations>0){var hash=CryptoJS.SHA256(text+count).toString(CryptoJS.enc.Hex);if(hash.match(pattern)){input.value=count;container.classList.remove("hashcash__working");container.classList.add("hashcash__done");break}count++;iterations--}},300)})})(button)}}});