/*--------------------------------------------------------------------------*/
/*	Lightbox
*	This is a showscript for creating modal dialog windows (like the ones your operating
*	system uses)
*
*/

var Lightbox = {
	/* hideAll - closes all open lightbox windows */
	hideAll: function(){
		lboxes = document.getElementsByClassName('lbox')
		lboxes.each(function(box){
				Element.hide(box)
			}
		)
		if ($('overlay')){
			Element.remove('overlay');
			}
	}
}
Lightbox.base = Class.create();
Lightbox.base.prototype = {

	initialize: function(element, options){
		//start by hiding all lightboxes
		Lightbox.hideAll();

		this.element = $(element);
		this.options = Object.extend({
			lightboxClassName : 'lightbox',
			closeOnOverlayClick : false,
			externalControl : false
		}, options || {} )
        

		//create the overlay
//		new Insertion.Before(this.element, "<div id='overlay' style='display:none;'></div>");
        var objBody = document.getElementsByTagName("body").item(0);
        var oElem10 = document.createElement('div');
        oElem10.setAttribute('id','overlay');
        oElem10.setAttribute('style','display:none;');
        objBody.appendChild(oElem10);

		// Sonderfall IE - nimmt keine 100% aus CSS
        
        document.getElementById('overlay').style.height=screen.height;
        

        Element.addClassName(this.element, this.options.lightboxClassName)

		//also add a default lbox class to the lightbox div so we can find and close all lightboxes if we need to
		Element.addClassName(this.element, 'lbox')
/***
// kein Schliessen Icon
		//Tip: make sure the path to the close.gif image below is correct for your setup
		closer = '<img id="close" src="img/close.gif" alt="Close" title="Close this window" />'

		//insert the closer image into the div
		new Insertion.Top(this.element, closer);

		Event.observe($('close'), 'click', this.hideBox.bindAsEventListener(this) );
***/
		if (this.options.closeOnOverlayClick){
			Event.observe($('overlay'), 'click', this.hideBox.bindAsEventListener(this) );
		}

		if (this.options.externalControl){
			Event.observe($(this.options.externalControl), 'click', this.hideBox.bindAsEventListener(this) );
		}

		this.showBox();
	},

	showBox : function(){
		//show the overlay
	   Element.show('overlay');

		//center the lightbox
	   this.center();

	   	//show the lightbox
	   Element.show(this.element);

                if (document.getElementById("iframe_lbox"))
		{
		    document.getElementById("iframe_lbox").style.top     = this.element.style.top;
                    document.getElementById("iframe_lbox").style.left      = this.element.style.left;
                    document.getElementById("iframe_lbox").style.height  =  this.element.clientHeight+'px';
                    document.getElementById("iframe_lbox").style.width   =  this.element.clientWidth+'px';
                    document.getElementById("iframe_lbox").style.visibility = "visible";
		}
	   return false;
	},

	hideBox : function(evt){
	    try {
		Element.removeClassName(this.element, this.options.lightboxClassName)
		Element.hide(this.element);
		//remove the overlay element from the DOM completely
		Element.remove('overlay');
                if (document.getElementById("iframe_lbox"))
                {
                    document.getElementById("iframe_lbox").style.visibility = "hidden";
		}
	    } catch (e) {}
		return false;
	},

	center : function(){
		var my_width  = 0;
		var my_height = 0;

		if ( typeof( window.innerWidth ) == 'number' ){
			my_width  = window.innerWidth;
			my_height = window.innerHeight;
		}else if ( document.documentElement &&
				 ( document.documentElement.clientWidth ||
				   document.documentElement.clientHeight ) ){
			my_width  = document.documentElement.clientWidth;
			my_height = document.documentElement.clientHeight;
		}
		else if ( document.body &&
				( document.body.clientWidth || document.body.clientHeight ) ){
            my_width  = document.body.clientWidth;
			my_height = document.body.clientHeight;
		}
        //IE Abfrage wegen Position
        var IE6 = (navigator.appName.indexOf("Microsoft")&&(navigator.appVersion.substring(0, 1)<7))?false:true;
		if(!IE6)this.element.style.position = 'fixed';
		this.element.style.zIndex   = 1001;

		var scrollY = 0;
/*
		if ( document.documentElement && document.documentElement.scrollTop ){
			scrollY = document.documentElement.scrollTop;
		}else if ( document.body && document.body.scrollTop ){
			scrollY = document.body.scrollTop;
		}else if ( window.pageYOffset ){
			scrollY = window.pageYOffset;
		}else if ( window.scrollY ){
			scrollY = window.scrollY;
		}
*/
		var elementDimensions = Element.getDimensions(this.element);

		var setX = ( my_width  - elementDimensions.width  ) / 2;
		var setY = ( my_height - elementDimensions.height ) / 2 + scrollY;

		setX = ( setX < 0 ) ? 0 : setX;
		setY = ( setY < 0 ) ? 0 : setY;
		this.element.style.left = setX + "px";
		this.element.style.top  = setY + "px";

/*
        // Position des Eltern Elements ermitteln
        setXX = document.getElementById('suche').offsetLeft;
        setYY = document.getElementById('suche').offsetTop;

		this.element.style.left = (setX - setXX) + "px";
		this.element.style.top  = (setY - setYY -25) + "px";
*/
	}


}