function passwordStrength(password) { var desc = new Array(); desc[0] = "Very Weak"; desc[1] = "Weak"; desc[2] = "Better"; desc[3] = "Medium"; desc[4] = "Strong"; desc[5] = "Strongest"; var score = 0; 
//if password bigger than 6 give 1 point
if (password.length > 6) score++; 
//if password has both lower and uppercase characters give 1 point
if ( ( password.match(/[a-z]/) ) && ( password.match(/[A-Z]/) ) ) score++;
//if password has at least one number give 1 point
if (password.match(/\d+/)) score++;
//if password has at least one special caracther give 1 point
if ( password.match(/.[!,@,#,$,%,^,&,*,?,_,~,-,(,)]/) ) score++;
//if password bigger than 12 give another 1 point
if (password.length > 12) score++; document.getElementById("passwordDescription").innerHTML = desc[score]; document.getElementById("passwordStrength").className = "strength" + score; }