// essai.html
function valider() {

	data = document.essai;

	if (data.txtprenom.value == ""){
	  data.txtprenom.focus();
	  alert("Please register your first name.");
	  return(false);
  	}

	if (data.txtnom.value == ""){
	  data.txtnom.focus();
	  alert("Please register your name.");
	  return(false);
  	}	

	if (data.txtcourriel.value == ""){
	  data.txtcourriel.focus();
	  alert("Please register your email.");
	  return(false);
	}else{
	  var checkOK = "@";
	  var Courriel = data.txtcourriel.value;
	  var Longueur = Courriel.length;
	  var allValid = true;
	  var nbr = 0
	   for (z = 0;  z < Courriel.length;  z++){
	      ch = Courriel.charAt(z);
	      if (ch == "@"){ 
	        nbr = nbr + 1
	      }
	  ch = Courriel.charAt(z);
    	} 
	}
	if (nbr != 1){
	    alert("There is an error in your email address.");
	    data.txtcourriel.focus();
	    return (false);
	}

	  var checkOK = ".";
	  var Courriel = data.txtcourriel.value;
	  var Longueur = Courriel.length;
	  var allValid = true;
	  var nbr = 0
	   for (z = 0;  z < Courriel.length;  z++){
	      ch = Courriel.charAt(z);
	      if (ch == "."){ 
	        nbr = nbr + 1
       	      }
  		ch = Courriel.charAt(z);
	   } 
	  if (nbr == 0){
	    alert("There is an error in your email address.");
	    data.txtcourriel.focus();
	    return (false);
	  }

	if (data.txttelephone.value == ""){
		data.txttelephone.focus();
		alert("Please register your telephone number.");
		return(false);
  	}
	
	if (data.txtpays.value == ""){
	  data.txtpays.focus();
	  alert("Enter your country.");
	  return(false);
  	}
	
	if (document.essai.radclient[0].checked){ // Il est déjà client
		//alert("Il est déjà client!!");


		if (data.sltsociete.options[document.essai.sltsociete.options.selectedIndex].value == "null"){
			data.sltsociete.focus();
			alert("Which is the company which referred you?");
			return(false);
		}
	
		if ((data.sltsociete.options[document.essai.sltsociete.options.selectedIndex].value == "autre") && (data.txtorganisation.value == "")){
			data.txtorganisation.focus();
			alert("Which other company referred you?");
			return(false);
		}

	}

	if (document.essai.radclient[1].checked){ // Il n'est pas déjà client
		//alert("Il n'est pas client!!");


		if (data.sltconnu.options[document.essai.sltconnu.options.selectedIndex].value == "null"){
			data.sltconnu.focus();
			alert("How did you learn about us ?");
			return(false);
		}

		if ((data.sltconnu.options[document.essai.sltconnu.options.selectedIndex].value == "autre") && (data.txtconnu.value == "")){
			data.txtconnu.focus();
			alert("Which other ways did you learn about us ?");
			return(false);
		}
	}
	
	
	if (data.sltcontact.options[document.essai.sltcontact.options.selectedIndex].value == ""){
		data.sltcontact.focus();
		alert("Would you like to be contacted by a representative?");
		return(false);
	}
	
/*	
document.essai.sltconnu.disabled = false;
document.essai.txtconnu.disabled = false;
document.essai.sltsociete.disabled = false;
document.essai.txtorganisation.disabled = false;
*/

document.essai.submit();

}