function queryString(name) {

    var url =''+ document.location;
    var nameIndex = url.indexOf(name, 0);
    var andIndex = url.indexOf('&', nameIndex);
    var value = '';
    if (andIndex < 0) { 
    value = url.substring(nameIndex + name.length+1); }
    else {
     value = url.substring(nameIndex + name.length+1, andIndex);
    }
    
    
    return value;
}

function goTo(ind) {
var shift=800;
$('.network').animate({'marginLeft':-1*ind*shift+'px'},'slow');
}

function showError(msg, objId) {
    $('#' + objId).next('.error').remove();
$('#' + objId).after('<span class="error">'+msg+'</span>');
}
function clearError( objId) {
    $('#' + objId).next('.error').remove();
   
}