var gallery_item = {
    validate: function() {
        var gallery_itemSubmit = $('gallery_item_submit');
        var errors = "";
        if (errors == "") {
            gallery_itemSubmit.value = "Processing...";
            gallery_itemSubmit.disabled = true;
            return true;
        } else {
            alert("Please fix the following errors:\n"+errors);
            return false;
        }
    }
}

// -------------------------
// Multiple File Upload
// -------------------------
function MultiSelector(list_target, max) {
    // if (typeof element === "undefined") {
    //   console.log('null');
    // }
    this.list_target = list_target;
    this.count = 0;
    this.id = 0;
    if( max ){
        this.max = max;
    } else {
        this.max = -1;
    };

    this.addElement = function( element ){
        if( element.tagName == 'INPUT' && element.type == 'file' ){
            element.name = 'gallery_photo[file_' + (this.id++) + ']';
            element.multi_selector = this;
            element.onchange = function(){
                var new_element = document.createElement( 'input' );
                new_element.type = 'file';
                this.parentNode.insertBefore( new_element, this );
                this.multi_selector.addElement( new_element );
                this.multi_selector.addListRow( this );
                this.style.position = 'absolute';
                this.style.left = '-1000px';
            };

            if( this.max != -1 && this.count >= this.max ){
                element.disabled = true;
            };

            this.count++;
            this.current_element = element;
        } else {
            alert( 'Error: not a file input element' );
        };

    };

    this.addListRow = function( element ){
        var new_row = document.createElement('li');
        var new_row_button = document.createElement( 'a' );
        new_row_button.title = 'Remove This Image';
        new_row_button.href = '#';
        new_row_button.innerHTML = 'Remove';
        new_row.element = element;
        new_row_button.onclick= function(){
            this.parentNode.element.parentNode.removeChild( this.parentNode.element );
            this.parentNode.parentNode.removeChild( this.parentNode );
            this.parentNode.element.multi_selector.count--;
            this.parentNode.element.multi_selector.current_element.disabled = false;
            return false;
        };

        new_row.innerHTML = element.value.split('/')[element.value.split('/').length - 1];
        new_row.appendChild( new_row_button );
        this.list_target.appendChild( new_row );
    };
}

document.observe('dom:loaded', function(event) {
    Ajax.Base.prototype.initialize = Ajax.Base.prototype.initialize.wrap(
        function(p, options) {
            p(options);
            this.options.parameters = this.options.parameters || {};
            this.options.parameters.authenticity_token = window._token || '';
        }
        );
});


//scroll up the login messages
document.observe('dom:loaded', function(event) {
    Effect.BlindUp('notice', {
        duration: 2.0,
        delay: 4
    });
});

checked=false;
function checkedAll (form) {
    //var aa= document.getElementById(form);
    var checkBoxes = document.forms[form].elements
    if (checked == false){
        checked = true
    }
    else{
        checked = false
    }
    for (var i =0; i < checkBoxes.length; i++){
        checkBoxes[i].checked = checked;
    }
}