var Dialog = {};

Dialog.Box = Class.create();
Object.extend(Dialog.Box.prototype, {
	initialize: function(id,mode) {

		switch(mode){
			case 'remote':
				if(id){
					this.dialog_box = document.createElement('div');
					this.dialog_box.setAttribute('id','__remote_dialog__');
					document.body.appendChild(this.dialog_box);
				}else{
					this.dialog_box = $(id);
				}

				var anchors = document.getElementsByTagName('a');
				for(anchor in anchors){
					anchor = anchors[anchor];


					if(typeof(anchor) != 'object') continue;
					if(!anchor.hasAttribute('rel')) continue;
					if(anchor.getAttribute('rel').indexOf('dialog') < 0) continue;

					anchor.onclick = function(dialog,e){
						new Ajax.Request(this.href,{
							onComplete : function(o){
								this.dialog_box.innerHTML = o.responseText;
								var anchors = this.dialog_box.getElementsByTagName('a'); //Find a closing anchor
								for(anchor in anchors){
									anchor = anchors[anchor];
									if(typeof(anchor) != 'object') continue;
									if(!anchor.hasAttribute('rel')) continue;
									if(anchor.getAttribute('rel').indexOf('dialog-close') < 0) continue;
									console.log(anchor);
									anchor.onclick = function(dialog,e){
										dialog.hide();
										return false;
									}.bind(anchor,this.dialog_box);
								}
								this.dialog_box.show();
							}.bind(dialog)
						});

						return false;
					}.bind(anchor,this);
				}
			break;
			default:
				this.dialog_box = $(id);
			break;
		}

		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.top = 70 + '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%',
			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.width/2))/2) + 'px';
        this.dialog_box.style.top = 70 + '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;

	}

  });


/*
var Dialog = {};

Dialog.Box = Class.create();
Object.extend(Dialog.Box.prototype, {
  initialize: function(id) {
    
    this.createOverlay();

    this.dialog_box = $(id);
    this.dialog_box.show = this.show.bind(this);
    this.dialog_box.hide = this.hide.bind(this);

    this.parent_element = this.dialog_box.parentNode;  

    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 = '12px';

  },

  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%',
      	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 = document.body.getHeight()+'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: 0.3});
    this.dialog_box.style.display = ''
    

    
  },

  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)})
  }
});

*/