function isEmail(str)
 {
  var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
    return (filter.test(str));
 }
 
 function checkForm()
 {
  var frm  = document.forms[0];
  var name = frm.NAME.value;
  var email= frm.EMAIL.value;
  //var chk = frm.AGREE.checked;
 
  if(name.length<=2 || name=='')
  {
   alert('Please provide a valid name');
   frm.NAME.focus();
   return false;
  } else if(!isEmail(email))
  {
   alert('Please provide a valid email');
   frm.EMAIL.focus();
   return false;
  } 
  /*
  else if(chk != true)
  {
   alert('You have to accept all Terms & Conditions');
   //frm.AGREE.focus();
   return false;
  }
  */
  return true;
 }
 function mailvalidate (frmname){
 	if(!isEmail(document.downloadfrm.email.value)){
		alert('Please provide a valid email');
		document.downloadfrm.email.focus();
		return false;
	}
	return true;
 }