function createCaptcha(l){if(l==undefined){l=4;};if(l.length>4){l=4;};for(let i=0;i<l;i++){if(i%2==0){captcha[i]=String.fromCharCode(Math.floor((Math.random()*26)+65));}else{captcha[i]=Math.floor((Math.random()*10)+0);};};return captcha.join("");};function validateRecaptcha(p_cap,p_recap){if(p_recap==""||p_recap==undefined||p_recap==null){return "Kode harus diisi";};p_recap=p_recap.toLowerCase();var validRecap=0;for(var i=0;i<p_cap.length;i++){if(p_recap.charAt(i)!=(p_cap[i]+"").toLowerCase()){validRecap++;};};if(validRecap>0||p_recap.length>4){return "Kode salah. Click di kode untuk mengganti kode.";};return "";};