function run_script(_div) {
    if (_div) {
    	var divContent = _div.childNodes;
    	if (divContent) {
        	for (var i = 0; i < divContent.length; i++) {
        		var requestItem = divContent.item(i);
        		if (requestItem.tagName) {
                    if (requestItem.tagName.toUpperCase() == 'SCRIPT') {
                        eval(requestItem.text);
                    }
                    else run_script(requestItem);
        		}
        	}
    	}
    }
}

Form.Methods.update = function (form, toContainer) {
    form = $(form);
    
    var options = {
        evalJS: true,
        onComplete: function (transport) {
            toContainer.innerHTML = transport.responseText;
        }
    };
    return form.request(options);
    
}
Element.addMethods();  

var Dialog = {};

Dialog.showInWindow = function (id, title, url, startCallback, endCallback) {
    if (startCallback) {
        startCallback.call();
    }
    
    new Ajax.Request(url, {
        method: 'get',
        onSuccess: function(transport) {
            var dialog = $(id) ? $(id) : new Element('div', { 'id' : id });
            if (title) {
                dialog.innerHTML = '<a href="#" onclick="$(\'' + id + '\').hide()"><div class="dialog_window_close_button"></div></a><div class="dialog_window_header">' + title + '</div><div id="dialog_box_' + id + '" class="dialog_window">' + transport.responseText + '</div>';
            } else {
                dialog.innerHTML = '<div id="dialog_box_' + id + '" class="dialog_window">' + transport.responseText + '</div>';
            }
            document.body.appendChild(dialog);
            new Dialog.Box(id);
            $(id).show();

            run_script($(id));
            
            if (endCallback) {
                endCallback.call();
            }
        }
    });
}

Dialog.Box = Class.create();
Object.extend(Dialog.Box.prototype, {
    initialize: function(id) {
        this.dialog_box = $(id);
        
        this.createOverlay();
        this.dialog_box.show = this.show.bind(this);
        this.dialog_box.persistent_show = this.persistent_show.bind(this);
        this.dialog_box.hide = this.hide.bind(this);
        this.dialog_box.close = this.hide.bind(this);
        this.dialog_box.exit = this.hide.bind(this);

        this.parent_element = this.dialog_box.parentNode;

        this.dialog_box.style.position = "absolute";

        var e_dims = Element.getDimensions(this.dialog_box);
        var b_dims = Element.getDimensions(this.overlay);
        
        this.dialog_box.style.left = ((b_dims.width/2) - (e_dims.width/2)) + 'px';
        this.dialog_box.style.top = this.getScrollTop() + ((this.winHeight() - (e_dims.width/2))/2) + 'px';
        this.dialog_box.style.zIndex = this.overlay.style.zIndex + 1;
    },

    createOverlay: function() {
        if($('dialog_overlay')) {
            this.overlay = $('dialog_overlay');
        } else {
            this.overlay = document.createElement('div');
            this.overlay.id = 'dialog_overlay';
            Object.extend(this.overlay.style, {
                position: 'absolute',
                top: 0,
                left: 0,
                zIndex: 90,
                width: '100%',
                height: '100%',
                backgroundColor: '#000',
                display: 'none'
            });
            document.body.insertBefore(this.overlay, document.body.childNodes[0]);
        }
    },

    moveDialogBox: function(where) {
        Element.remove(this.dialog_box);
        if(where == 'back')
        this.dialog_box = this.parent_element.appendChild(this.dialog_box);
        else
        this.dialog_box = this.overlay.parentNode.insertBefore(this.dialog_box, this.overlay);
    },

    show: function() {
        this.overlay.style.height = this.bodyHeight()+'px';
        this.moveDialogBox('out');

        this.overlay.onclick = this.hide.bind(this);

        this.selectBoxes('hide');
        new Effect.Appear(this.overlay, {duration: 0.1, from: 0.0, to: 0.7});
        this.dialog_box.style.display = '';

        this.dialog_box.style.left = '0px';

        var e_dims = Element.getDimensions(this.dialog_box);
        
        this.dialog_box.style.left = ((this.winWidth()/2) - (e_dims.width)/2) + 'px';

        this.dialog_box.style.top = (this.getScrollTop() + (this.winHeight() - e_dims.height)/2) + 'px';
    },
    
    getScrollTop: function() {
        return (window.pageYOffset)?window.pageYOffset:(document.documentElement && document.documentElement.scrollTop)?document.documentElement.scrollTop:document.body.scrollTop;
    },

    persistent_show: function() {
        this.overlay.style.height = this.bodyHeight()+'px';
        this.moveDialogBox('out');

        this.selectBoxes('hide');
        new Effect.Appear(this.overlay, {duration: 0.1, from: 0.0, to: 0.3});

        this.dialog_box.style.display = '';
        this.dialog_box.style.left = '0px';
        var e_dims = Element.getDimensions(this.dialog_box);
        this.dialog_box.style.left = ((this.winWidth()/2) - (e_dims.width)/2) + 'px';

    },

    hide: function() {
        this.selectBoxes('show');
        new Effect.Fade(this.overlay, {duration: 0.1});
        this.dialog_box.style.display = 'none';
        this.moveDialogBox('back');
        $A(this.dialog_box.getElementsByTagName('input')).each(function(e){if(e.type!='submit')e.value=''});
    },

    selectBoxes: function(what) {
        $A(document.getElementsByTagName('select')).each(function(select) {
            Element[what](select);
        });

        if(what == 'hide')
        $A(this.dialog_box.getElementsByTagName('select')).each(function(select){Element.show(select)})
    },

    bodyWidth: function() { return document.body.offsetWidth || window.innerWidth || document.documentElement.clientWidth || 0; },
    bodyHeight: function() { return document.body.offsetHeight || window.innerHeight || document.documentElement.clientHeight || 0; },

    winWidth: function() {
        var viewportwidth;

        // the more standards compliant browsers (mozilla/netscape/opera/IE7) use window.innerWidth and window.innerHeight

        if (typeof window.innerWidth != 'undefined')
        {
            viewportwidth = window.innerWidth;
        }

        // IE6 in standards compliant mode (i.e. with a valid doctype as the first line in the document)

        else if (typeof document.documentElement != 'undefined' && typeof document.documentElement.clientWidth != 'undefined' && document.documentElement.clientWidth != 0)
        {
            viewportwidth = document.documentElement.clientWidth;
        }

        // older versions of IE

        else
        {
            viewportwidth = document.getElementsByTagName('body')[0].clientWidth
        }
        return viewportwidth;

    },
    winHeight: function() {
        var viewportheight;

        // the more standards compliant browsers (mozilla/netscape/opera/IE7) use window.innerWidth and window.innerHeight

        if (typeof window.innerHeight != 'undefined')
        {
            viewportheight = window.innerHeight
        }

        // IE6 in standards compliant mode (i.e. with a valid doctype as the first line in the document)

        else if (typeof document.documentElement != 'undefined' && typeof document.documentElement.clientHeight != 'undefined' && document.documentElement.clientHeight != 0)
        {
            viewportheight = document.documentElement.clientHeight;
        }

        // older versions of IE

        else
        {
            viewportheight = document.getElementsByTagName('body')[0].clientHeight;
        }
        return viewportheight;

    }

});