Javascript character count

Question

Example here: http://jsfiddle.net/67XDq/1/

I have the following HTML:

    17.
    

        

Answer 1

see fiddle: http://jsfiddle.net/abhiklpm/67XDq/15/

modified the function:

function textCounter(field, cntfield, maxlimit) {        
    if (document.getElementById(field).value.length > maxlimit) {
        // if too long...trim it!
        document.getElementById(field).value = document.getElementById(field).value.substring(0, maxlimit);
    }
    // otherwise, update 'characters left' counter
    else {        
      document.getElementById(cntfield).value = maxlimit - document.getElementById(field).value.length;
    }
}

also you were missing id id="q17length" in your html

edited: also u were not passing the ids as string: textCounter('q17','q17length','500');