// JavaScript Document
<!--
// 
var mail=1;

function EEmailCheck (emailStr) {

var emailPat=/^(.+)@(.+)$/
var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
var validChars="\[^\\s" + specialChars + "\]"
var quotedUser="(\"[^\"]*\")"
var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
var atom=validChars + '+'
var word="(" + atom + "|" + quotedUser + ")"
var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")


var matchArray=emailStr.match(emailPat)
if (matchArray==null) {
 	return false;
}
var user=matchArray[1]
var domain=matchArray[2]

if (user.match(userPat)==null) {

    return false;
}


var IPArray=domain.match(ipDomainPat)
if (IPArray!=null) {
    // this is an IP address
	  for (var i=1;i<=4;i++) {
	    if (IPArray[i]>255) {
	
			return false;
	    }
    }
    return true;
}


var domainArray=domain.match(domainPat)
if (domainArray==null) {

    return false;
}



var atomPat=new RegExp(atom,"g")
var domArr=domain.match(atomPat)
var len=domArr.length
if (domArr[domArr.length-1].length<2 || 
    domArr[domArr.length-1].length>3) {
 
	return false;
}

if (len<2) {

	return false;
}


return true;
}


////////////********************************

//EMPIEZA
function ChecarDatos(){
var chDay,chYear;
var chForm=document.formareg;

  if(chForm.nombre.value == "" || chForm.nombre.value == "Nombre" ){
		  alert("Falta colocar tu nombre.");
          chForm.nombre.focus();
		  return false;
    	  }
		  
		  


	     if(chForm.email.value == ""){
		  alert("Tu mail no la has puesto.");
          chForm.email.focus();
		  return false;
    	  }
			else
			{	
			if(chForm.email.value != "")
			  {
		  		if (!EEmailCheck(chForm.email.value)) 
		  			{
         		 	  alert("Tu mail no es válido.");
       				   chForm.email.focus();
				 	  return false;
					}
			   }
	  		}
	  
	  
		    if(chForm.comen.value == "" || chForm.comen.value == "Comentario" ){
		  alert("Falta tu comentario, opinion o critica ");
          chForm.comen.focus();
		  return false;
    	  }
			
	  
}