function gotoValidateContact()
{
		 
		$my_email = unknown_caracter_mail(document.getElementById("my_email").value);
		$my_name = unknown_caracter(document.getElementById("my_name").value);
		$my_surname = unknown_caracter(document.getElementById("my_surname").value);
		$my_question = unknown_caracter(document.getElementById("my_question").value); 
		
		 
		 
		 if ( ($my_email == false) ){
			 		
					//alert ("Saisie incorrecte !");
					document.getElementById('error_my_email').className = "visible"; 
					$validate_my_email = false;
		 }else{ 
		 			document.getElementById('error_my_email').className = "hidden";
			 		$validate_my_email = true;
		 } 
		 
		 if ( ($my_name == false) ){
			 		
					//alert ("Saisie incorrecte !");
					document.getElementById('error_my_name').className = "visible"; 
					$validate_my_name = false;
		 }else{ 
		 			document.getElementById('error_my_name').className = "hidden";
			 		$validate_my_name = true;
		 } 		 
		 
		 if ( ($my_surname == false) ){
			 		
					//alert ("Saisie incorrecte !");
					document.getElementById('error_my_surname').className = "visible"; 
					$validate_my_surname = false;
		 }else{ 
		 			document.getElementById('error_my_surname').className = "hidden";
			 		$validate_my_surname = true;
		 } 		 
		 if ( ($my_question == false) ){
			 		
					//alert ("Saisie incorrecte !");
					document.getElementById('error_my_question').className = "visible"; 
					$validate_my_question = false;
		 }else{ 
		 			document.getElementById('error_my_question').className = "hidden";
			 		$validate_my_question = true;
		 } 
		 
		 
		  if (  ($validate_my_email == false) || ($validate_my_question == false) || ($validate_my_name == false) || ($validate_my_surname == false) )
		 {
			 
					 return false;
		 }else{
			 
					 return true;
		 }  
}

function unknown_caracter_mail($string)
{
	//alert($string);
	$caracter = $string.toLowerCase();
	//alert($caracter);
	$return = true;
	
	if ($caracter.indexOf('html', 0) != -1)
	{
		$return = false;	
		 //alert ('1');
	}	 
	
	if ($caracter.indexOf(';', 0) != -1)
	{
		$return = false;	
		 //alert ('1');
	}	
	
	if ($caracter.indexOf('!', 0) != -1)
	{
		$return = false;	
		 //alert ('1');
	}	

	if ($caracter.indexOf('php', 0)!= -1)
	{
		$return = false;	
		 //alert ('2');
	}
	
	if ($caracter.indexOf('script', 0)!= -1)
	{
		$return = false;	
		 //alert ('3');
	}
	if ($caracter.indexOf(';', 0) != -1)
	{
		$return = false;	
		 //alert ('1');
	}

	if ($caracter.indexOf(',', 0) != -1)
	{
		$return = false;	
		 //alert ('1');
	}
	
	if ($caracter.indexOf('!', 0) != -1)
	{
		$return = false;	
		 //alert ('1');
	}	 
	if ($caracter.indexOf('/', 0)!= -1)
	{
		$return = false;	
		 //alert ('4');
	}
	 
	 if ($caracter.indexOf('<', 0)!= -1)
	{
		$return = false;	
		 //alert ('5');
	}

	 if ($caracter.indexOf('>', 0)!= -1)
	{
		$return = false;	
		// alert ('5');
	}

	if ($caracter.indexOf('java', 0) != -1)
	{
		$return = false;	
		// alert ('6');
	}	 	

	if ($caracter.indexOf('delete', 0) != -1)
	{
		$return = false;	
		// alert ('7');
	}	 
	
	if ($caracter.indexOf('?', 0) != -1)
	{
		$return = false;	
		// alert ('7');
	}	
	
	if ($caracter.indexOf('drop', 0) != -1)
	{
		$return = false;	
		// alert ('8');
	}	 

	if ($caracter.indexOf('select', 0) != -1)
	{
		$return = false;	
		// alert ('9');
	}

	if ($caracter.indexOf('@', 0) == -1)
	{
			$return = false;	
			//alert ('10_1');
	}else{
			if ($caracter.indexOf('.', $caracter.indexOf('@', 0)) == -1)
			{
					$return = false;	
					//alert ('10');	
			}
	}


	return $return;

}

function unknown_caracter($string)
{
	//alert($string);
	$caracter = $string.toLowerCase();
	//alert($caracter);
	$return = true;
	//alert ('un function');
	
	if ($caracter.length < 2)
	{
		$return = false;	
		 //alert ('1');
	}	 
	
	if ($caracter.indexOf('html', 0) != -1)
	{
		$return = false;	
		 //alert ('1');
	}	 
	 
	if ($caracter.indexOf('php', 0)!= -1)
	{
		$return = false;	
		 //alert ('2');
	}
	
	if ($caracter.indexOf('script', 0)!= -1)
	{
		$return = false;	
		 //alert ('3');
	}
	if ($caracter.indexOf(';', 0) != -1)
	{
		$return = false;	
		 //alert ('1');
	}

	if ($caracter.indexOf(',', 0) != -1)
	{
		$return = false;	
		 //alert ('1');
	}
	
	if ($caracter.indexOf('!', 0) != -1)
	{
		$return = false;	
		 //alert ('1');
	}	 
	if ($caracter.indexOf('/', 0)!= -1)
	{
		$return = false;	
		 //alert ('4');
	}
	 
	 if ($caracter.indexOf('<', 0)!= -1)
	{
		$return = false;	
		 //alert ('5');
	}

	 if ($caracter.indexOf('>', 0)!= -1)
	{
		$return = false;	
		// alert ('5');
	}

	if ($caracter.indexOf('java', 0) != -1)
	{
		$return = false;	
		// alert ('6');
	}	 	

	if ($caracter.indexOf('delete', 0) != -1)
	{
		$return = false;	
		// alert ('7');
	}	 

	if ($caracter.indexOf('drop', 0) != -1)
	{
		$return = false;	
		// alert ('8');
	}	 

	if ($caracter.indexOf('select', 0) != -1)
	{
		$return = false;	
		// alert ('9');
	}	

	return $return;

}