function toggle_box_display(id) {
    
    id2 = id+'_plus';
    if (document.getElementById(id).style.display == 'none') {    
        document.getElementById(id).style.display = 'block';
        document.getElementById(id+'_plus').src = 'templates/erosnap/images/box_minus.gif'
    }
    else {
        document.getElementById(id).style.display = 'none';
        document.getElementById(id+'_plus').src = 'templates/erosnap/images/box_plus.gif'
    }
    
}

function checkUniqueEmail(email) {
    var result;
    new Ajax.Request('/xml.php', //Needs the prototypeclass
        {
            method: 'post',
            asynchronous: false,
            parameters: {
                type: 'checkRegisterEmail',
                email: email
            },
            onSuccess: function(transport) {
                var xml = transport.responseXML;
                                
                var checker = xml.getElementsByTagName("check_flag")[0].firstChild.data;
                result = true;                
                if (checker=="NOK")
                    result = false;
            }
        }
        );
    return result;
}
 
function saveRating(info,uid,id,object_name,comment) {    
    var html;
    new Ajax.Request('/xml.php',
        {
            method: 'post',
            asynchronous: false,
            parameters: {
                type: 'saveRating',
                rating: info.rated,
                uid: uid,
                id: id,
                object_name: object_name,
                comment: comment
            },
             onSuccess: function(transport) {                 
                var xml = transport.responseXML;                                
                html = xml.getElementsByTagName("htmlReturn")[0].firstChild.data;
             }
        }
        );
    document.getElementById('rating').innerHTML = html;
}
 
function checkEmail(email,id) {
     /*
        checks an email, also that is unique in the system
     */
          
     
     if (email.length>0) {             
          var res = false;              
          reg = new RegExp('^([a-zA-Z0-9\\-\\.\\_]+)'+
                             '(\\@)([a-zA-Z0-9\\-\\.]+)'+
                             '(\\.)([a-zA-Z]{2,4})$');
          res = reg.test(email);
          
          if (!res) error_msg='Bitte geben Sie eine gültige E-Mail-Adresse an.';                                    
          /*          
          if (res) { //do the ajax checks
              res=checkUniqueEmail(email);              
              if (!res) error_msg='Diese E-Mailadresse existiert schon. Falls Sie Ihr Passwort vergessen haben lassen Sie es sich über den "Passwort vergessen" Link zuschicken.';
          } */                                   
          if (!res) input_error(id,true,error_msg);
          else input_error(id,false);
     } else showLamp();
 }
 
 function checkANYTHING(value,id) {
     /*
        not used yet             
     */
    if (!checker) input_error(id,true);
    else input_error(id,false);
    
 }
 
 function input_error(id,flag,error_msg) {
     /*
        Changes classes and styles for the input errors
     
     */
    
    var error_class="error";                                    
    oldclass = document.getElementById(id).className;                        
    oldclass = oldclass.replace(new RegExp(error_class,"g"),'');
    
    showLamp(0,id);
                            
    if (flag) {                
        //put the error class
        oldclass = oldclass + " " + error_class;
        //show the red light
        showLamp(1,id,error_msg);
        
    }
    document.getElementById(id).className=oldclass;
 }
 
 function showLamp(status,id,error_msg) {   
     /*
        turns on/off the lamp next to an input
     
     */
     lamp = document.getElementById("lamp_"+id);
     
     if (status==0) {
         lamp.src="images/lamp_green.gif"; lamp.alt="Ok"; lamp.title="Ok";
     } else if (status==1) {
         lamp.src="images/lamp_red.gif"; lamp.alt=error_msg; lamp.title=error_msg;
     } else {
         lamp.src="images/lamp_empty.gif"; lamp.alt=""; lamp.title="";
     }                          
 }