function KeyCheck(myfield,e) {
 var keycode;
 if (window.event) keycode = window.event.keyCode;
  else if (e) keycode = e.which;
   else return true;
 if (((keycode>47) && (keycode<58) )  || (keycode==8) || (keycode==46)) { return true; }
  else return false;
}

function DateCheck(as,e) {
   var isIE = document.all?true:false;
   var isNS = document.layers?true:false;
   var key = (isIE) ? window.event.keyCode : e.which;
   var obj = (isIE) ? event.srcElement : e.target;
   var isNum = ((key > 47 && key < 58) || key == 47) ? true:false;
   if(key < 32) return true;
   return (isNum);
}