var frmerr="";
   function checkEmail(){frmerr="Message failed with the following errors:";
    if(isName()&&isEmail()&&isTel()&&isMessage()){
     if(confirm("You're about to send an email.\nContinue?")){
	  return true;
	  //document.forms['emfrm'].submit();
	 }else{return false;}
    }else{alert(frmerr);return false;}
   }
   function isName(){
    var en=document.getElementById('yN');
	if(en.value==""||en.value=="Your name"){frmerr+='\nName empty.';en.focus();return false;}return true;}
   function isEmail(){
    var ee=document.getElementById('yE');var et=document.getElementById('yT'); 
	if(ee.value==""&&et.value!=""||ee.value.length>6&&ee.value.indexOf('@')>-1&&ee.value.indexOf('.',ee.value.indexOf('@'))>ee.value.indexOf('@')&&ee.value.indexOf(' ')==-1){return true;}else{frmerr+='\nEmail incorrect.';ee.focus();return false;}}
   function isTel(){
     var et=document.getElementById('yT');var ee=document.getElementById('yE');
	 if(et.value==""&&!isEmail()||et.value=="Your telephone number"&&!isEmail()){frmerr+='\nTelephone empty.';et.focus();return false;}return true;}
   function isMessage(){
     var em=document.getElementById('yM');
	 if(em.value!=""&&em.value!="Your message"){return true;}else{frmerr+='\nMessage empty.';em.focus();return false;}}