function CheckUpSignUp(form){
	if (!(form.firstname.value)) {
		alert("Please write your first name");
		document.form.firstname.focus();
		return false;
	}else{
		if(!IsAlphabet(form.firstname.value)){
			alert("Please enter an Alphabetic first name!");
			document.form.firstname.focus();
			return false;
		}		
	}
	/*
	if (!(form.lastname.value)) {
		alert("Please write your last name");
		document.form.lastname.focus();
		return false;
	}else{
		if(!IsAlphabet(form.lastname.value)){
			alert("Please enter an Alphabetic last name!");
			document.form.lastname.focus();
			return false;
		}		
	}
	*/
	if (!(form.username.value)) {
		alert("Please write your username");
		document.form.username.focus();
		return false;
	}
	if (!(form.passkey.value)) {
		alert("Please choose a password");
		document.form.passkey.focus();
		return false;
	}else{
		if(form.passkey.value !== form.passkey2.value){
			alert("Please retype the password correctly!");
			document.form.passkey2.focus();
			return false;
		}		
	}
	if (!(form.email.value)) {
		alert("Please write your email address");
		document.form.email.focus();
		return false;
	}else{
		if(!echeck(form.email.value)){
			document.form.email.focus();
			return false;
		}	
	}
/*
	if (!(form.birthDate_d.value)) {
		alert("Please select your Birth Date - Day");
		document.form.birthDate_d.focus();
		return false;
	}
	if (!(form.birthDate_m.value)) {
		alert("Please select your Birth Date - Month");
		document.form.birthDate_m.focus();
		return false;
	}
	if (!(form.birthDate_y.value)) {
		alert("Please select your Birth Date - Year");
		document.form.birthDate_y.focus();
		return false;
	}
	if (!(form.gender.value)) {
		alert("Please select your gender");
		document.form.gender.focus();
		return false;
	}
	if (!(form.country.value)) {
		alert("Please select your country");
		document.form.country.focus();
		return false;
	}
	
	if (!(form.location.value)) {
		alert("Please select your place of residency");
		document.form.location.focus();
		return false;
	}*/
	if (!(form.telephone.value)) {
		alert("Please write your telephone number");
		document.form.telephone.focus();
		return false;
	}else{
		if(!IsNumeric(form.telephone.value)){
			alert("Please enter a numeric telephone number!");
			document.form.telephone.focus();
			return false;
		}		
	}
	/*
	if (!(form.occupation.value)) {
		alert("Please select your occupation");
		document.form.occupation.focus();
		return false;
	}
	if (!(form.genre.value)) {
		alert("Please write your Favourite music genre");
		document.form.genre.focus();
		return false;
	}
	if (!(form.genre2.value)) {
		alert("Please select your Second favourite music genre");
		document.form.genre2.focus();
		return false;
	}
	if (!(form.mobile.value)) {
		alert("Please select your Favourite mobile brand");
		document.form.mobile.focus();
		return false;
	}
	if (!(form.radio.value)) {
		alert("Please select your Favourite Radio Station");
		document.form.radio.focus();
		return false;
	}
	if (!(form.car.value)) {
		alert("Please select your Favourite car make");
		document.form.car.focus();
		return false;
	}
	if (!(form.cigarette.value)) {
		alert("Please select your Favourite Сigarette Brand");
		document.form.cigarette.focus();
		return false;
	}
	if (!(form.drink.value)) {
		alert("Please select your Favourite Drink");
		document.form.drink.focus();
		return false;
	}
	if (!(form.magazine.value)) {
		alert("Please select your Favourite publication in UAE");
		document.form.magazine.focus();
		return false;
	}
	if (!(form.income.value)) {
		alert("Please select your Your monthly income:");
		document.form.income.focus();
		return false;
	}
	if (!(form.hear_about.value)) {
		alert("Please select How did you hear about Quantum");
		document.form.hear_about.focus();
		return false;
	}
	*/
	
	return true;
}









// ----------------------------------------------------------------------
function echeck(str) {
	var at="@"
	var dot="."
	var lat=str.indexOf(at)
	var lstr=str.length
	var ldot=str.indexOf(dot)
	if (str.indexOf(at)==-1){
	   alert("Invalid E-mail ID")
	   return false
	}

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
	   alert("Invalid E-mail ID")
	   return false
	}

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		alert("Invalid E-mail ID")
		return false
	}

	 if (str.indexOf(at,(lat+1))!=-1){
		alert("Invalid E-mail ID")
		return false
	 }

	 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		alert("Invalid E-mail ID")
		return false
	 }

	 if (str.indexOf(dot,(lat+2))==-1){
		alert("Invalid E-mail ID")
		return false
	 }
	
	 if (str.indexOf(" ")!=-1){
		alert("Invalid E-mail ID")
		return false
	 }

	 return true					
}


function IsNumeric(sText)

{
   var ValidChars = "0123456789.-+";
   var IsNumber=true;
   var Char;

 
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
   
   }


function IsAlphabet(sText)

{
   var ValidChars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_.() ";
   var IsAlphabet=true;
   var Char;

 
   for (i = 0; i < sText.length && IsAlphabet == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsAlphabet = false;
         }
      }
   return IsAlphabet;
   
   }