function textLimit(field, maxlen, fname,txtfield) { 
//alert(field.value.length);
if (field.value.length > maxlen + 1)
alert('A maximum of '+ maxlen +' characters are allowed');
if (field.value.length > maxlen)
field.value = field.value.substring(0, maxlen);

/*var display_char;
var doc_form
doc_form = fname;*/

	txtfield.value=maxlen - field.value.length;

}