Check the field value Number or not in Javascript

<script type=”text/javascript”> numbersonly(myfield, e, dec) { var key; var keychar; if (window.event) { key = window.event.keyCode; } else if (e) { key = e.which; } else { return true; } keychar = String.fromCharCode(key); // control keys if ((key==null) || (key==0) || (key==8) || (key==9) || (key==13) || (key==27) ) { return true; } else if … Read moreCheck the field value Number or not in Javascript