function checkForm()
{
   var cgreeting, cfromname, cfromemail, ctoname, ctoemail, cmessage;
   with(window.document.createemail)
   {
      cgreeting    = greeting;
      cfromname    = fromname;
      cfromemail   = fromemail;
      ctoname      = toname;
      ctoemail     = toemail;
      cmessage     = message;
   }
   
   if(trim(cgreeting.value) == '')
   {
      alert('Please enter a greeting');
      cgreeting.focus();
      return false;
   }
   if(trim(cfromname.value) == '')
   {
      alert('Please enter your name');
      cfromname.focus();
      return false;
   }
   else if(trim(cfromemail.value) == '')
   {
      alert('Please enter your email');
      cfromemail.focus();
      return false;
   }
   else if(!isEmail(trim(cfromemail.value)))
   {
      alert('Your email address is not valid');
      cfromemail.focus();
      return false;
   }
   else if(trim(ctoname.value) == '')
   {
      alert('Please enter the recipient\'s name');
      ctoname.focus();
      return false;
   }
   else if(trim(ctoemail.value) == '')
   {
      alert('Please enter the recipient\'s email');
      ctoemail.focus();
      return false;
   }
   else if(!isEmail(trim(ctoemail.value)))
   {
      alert('The recipient\'s email address is not valid');
      ctoemail.focus();
      return false;
   }
   
   else if(trim(cmessage.value) == '')
   {
      alert('Please enter your message');
      cmessage.focus();
      return false;
   }
   else if(cmessage.value.length > 250){
		alert('Your message is ' + cmessage.value.length + ' characters, ' + (cmessage.value.length - 250) + ' characters over the limit');
		cmessage.focus(); // set the focus to this input
		return false;
	}
   else
   {
      cfromname.value    = trim(cfromname.value);
      cfromemail.value   = trim(cfromemail.value);
      ctoname.value      = trim(ctoname.value);
      ctoemail.value     = trim(ctoemail.value);
      cgreeting.value    = trim(cgreeting.value);
      cmessage.value     = trim(cmessage.value);
      return true;
   }
}

function trim(str)
{
   return str.replace(/^\s+|\s+$/g,'');
}

function isEmail(str)
{
   var regex = /^[-_.a-z0-9]+@(([-_a-z0-9]+\.)+(ad|ae|aero|af|ag|ai|al|am|an|ao|aq|ar|arpa|as|at|au|aw|az|ba|bb|bd|be|bf|bg|bh|bi|biz|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|com|coop|cr|cs|cu|cv|cx|cy|cz|de|dj|dk|dm|do|dz|ec|edu|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gh|gi|gl|gm|gn|gov|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|in|info|int|io|iq|ir|is|it|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|mg|mh|mil|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|museum|mv|mw|mx|my|mz|na|name|nc|ne|net|nf|ng|ni|nl|no|np|nr|nt|nu|nz|om|org|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|pro|ps|pt|pw|py|qa|re|ro|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|um|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|yu|za|zm|zw)|(([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5])\.){3}([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5]))$/i;

return regex.test(str);
}

function textCounter(field, countfield, maxlimit) {
 	// if too long...trim it!
	if (field.value.length > maxlimit) {
		field.value = field.value.substring(0, maxlimit);
		}
	
	// otherwise, update 'characters left' counter
	else {
		countfield.value = maxlimit - field.value.length;
		}
	}