/*
Form field Limiter script- By Dynamic Drive
For full source code and more DHTML scripts, visit http://www.dynamicdrive.com
This credit MUST stay intact for use
*/

var ns6 = document.getElementById && !document.all

function restrictinput(maxlength, e, placeholder) {
    if (window.event && event.srcElement.value.length >= maxlength)
        return false
    else if (e.target && e.target == eval(placeholder) && e.target.value.length >= maxlength) {
        var pressedkey = /[a-zA-Z0-9\.\,\/]/ //detect alphanumeric keys
        if (pressedkey.test(String.fromCharCode(e.which)))
            e.stopPropagation()
    }
}

function countlimit(maxlength, e, placeholder) {
    var theform = eval(placeholder)
    var lengthleft = maxlength - theform.value.length
    var placeholderobj = document.all ? document.all[placeholder] : document.getElementById(placeholder)
    if (window.event || e.target && e.target == eval(placeholder)) {
        if (lengthleft < 0)
            theform.value = theform.value.substring(0, maxlength)
        placeholderobj.innerHTML = lengthleft
    }
}


function displaylimit(theform, thelimit) {
    var limit_text = '<b><span id="' + theform.toString() + '">' + thelimit + '</span></b>'
    if (document.all || ns6)
        document.write(limit_text)
    if (document.all) {
        eval(theform).onkeypress = function() { return restrictinput(thelimit, event, theform) }
        eval(theform).onkeyup = function() { countlimit(thelimit, event, theform) }
    }
    else if (ns6) {
        document.body.addEventListener('keypress', function(event) { restrictinput(thelimit, event, theform) }, true);
        document.body.addEventListener('keyup', function(event) { countlimit(thelimit, event, theform) }, true);
    }
}