// JavaScript Document


function emailChkForm(frm) {
  var oFrm = frm;
  var rval = true;
  var errTxt = '';
  
  if (oFrm.yemail.value.length <= 0 || (!validemail(oFrm.yemail.value))) {
       rval = false;
	   errTxt = errTxt + 'Please enter your valid email address<br/>';
     }
	 
  if (oFrm.yname.value.length <= 0) {
       rval = false;
	   errTxt = errTxt + 'Please enter your name<br/>';
     }
  if (oFrm.yrecipients.value.length <= 0) {
       rval = false;
	   errTxt = errTxt + 'Please enter recipient email address(es)<br/>';
     }
  else {
       errRecip = '';
       strRecip = oFrm.yrecipients.value.replace(/\n/gi, ',');
	   strProcess = true;
	   while (strProcess) {
	     spos = strRecip.indexOf(',');
		 if (spos < 0) {
		   if (!validemail(strRecip)){
		     errRecip = errRecip + '<br/>' + strRecip;
			 rval = false;
		   }
		   strProcess = false;
		 }
		 else
		 {
		 snew = strRecip.substr(0, spos);
	       if (!validemail(snew)){
		     errRecip = errRecip + '<br/>' + snew;
			 rval = false;
		   }
		 i = spos;
		 strRecip = strRecip.substr(i+1);
		}
	   }
	   if (errRecip.length > 1) {
	     errRecip = 'Some of your recipient email addresses are invalid' + errRecip + '<br/>';
	   }
	   errTxt = errTxt + errRecip;
    }	 
	 
	 
  if (oFrm.ymessage.value.length <= 0) {
       rval = false;
	   errTxt = errTxt + 'Please enter your message<br/>';
     }	 
   if (!rval) {
     document.getElementById('frmerr').innerHTML = errTxt;
	 document.getElementById('frmerr').style.display = 'block';
   }
  return rval;
}