function launchWindow(url, features) {
  window.open(url, "_blank", features);}
function Validate(){ 
if (isNaN(document.info.frmQty.value) || document.info.frmQty.value == "" || document.info.frmQty.value == 0)
  { alert("Value for Quantity is Invalid!");document.info.frmQty.focus();document.info.frmQty.select();return false;}}