function valid_log(){
  mdp = document.login_form.Motdepasse;
  email = document.login_form.Email;
 var autorisation = true;
 
 if (mdp.value ==""){

  autorisation = false;
 }
 if (email.value ==""){
  document.login_form.Email.value="Entrez votre adresse email";
  autorisation = false;
 }
 
 a = email.value;
	valide1 = false;
	
	for(var j=1;j<(a.length);j++){
		if(a.charAt(j)=='@'){
			if(j<(a.length-4)){
				for(var k=j;k<(a.length-2);k++){
					if(a.charAt(k)=='.') valide1=true;
				}
			}
		}
	}
	if(valide1==false)
	{
	  document.login_form.Email.value="Entrez adresse email valide";

	autorisation=false;
	};
  return autorisation;
}

function erase(item)
	{
		  document.getElementById(item).value="";
	}
	
	
	
	
$(document).ready(function(){
$("input").focus(function(){
var info_form=$(this).next(".info");
info_form.empty();
}); 


}); 

  function validateName($name){  
         //if it's NOT valid  
         if(strlen($name) < 4)  
             return false;  
         //if it's valid  
         else  
             return true;  
     }  
     function validateEmail($email){  
         return ereg("^[a-zA-Z0-9]+[a-zA-Z0-9_-]+@[a-zA-Z0-9]+[a-zA-Z0-9.-]+[a-zA-Z0-9]+.[a-z]{2,4}$", $email);  
     }  
     function validatePasswords($pass1, $pass2) {  
         //if DOESN'T MATCH  
         if(strpos($pass1, ' ') !== false)  
             return false;  
         //if are valid  
         return $pass1 == $pass2 && strlen($pass1) > 5;  
     }  
     function validateMessage($message){  
         //if it's NOT valid  
         if(strlen($message) < 10)  
             return false;  
         //if it's valid  
         else  
             return true;  
     }