/********************************************************
For more info & download: http://www.ibegin.com/blog/p_ibox.html
Created for iBegin.com - local search done right
MIT Licensed Style
*********************************************************/
var indicator_img_path = "/images/indicator.gif";
var indicator_img_html = "<img name=\"ibox_indicator\" src=\""+indicator_img_path+"\" alt=\"Loading...\" style=\"width:128px;height:128px;\"/>"; // don't remove the name

var opacity_level = 8; // how transparent our overlay bg is
var ibAttr = "rel"; 	// our attribute identifier for our iBox elements
	

var imgPreloader = new Image(); // create an preloader object

showBG = function() {
	var box_w = getElem('ibox_w');
	

	box_w.style.opacity = 0;
	box_w.style.filter = 'alpha(opacity=0)';
	setBGOpacity = setOpacity;
	for (var i=0;i<=opacity_level;i++) {setTimeout("setIboxOpacity('ibox_w',"+i+")",70*i);} // from quirksmode.org
	
		
	box_w.style.display = "";
	var pagesize = new getPageSize();
	var scrollPos = new getScrollPos();
	var ua = navigator.userAgent;
	
	if(ua.indexOf("MSIE ") != -1) {box_w.style.width = pagesize.width+'px';} 
	/*else {box_w.style.width = pagesize.width-20+'px';}*/ // scrollbars removed! Hurray!
	box_w.style.height = pagesize.height+scrollPos.scrollY+'px';

}

hideBG = function() {
	var box_w = getElem('ibox_w');
	box_w.style.display = "none";

}

var loadCancelled = false;
showIndicator = function() {
	var ibox_p = getElem('ibox_progress');
	ibox_p.style.display = "";
	posToCenter(ibox_p);
	//ibox_p.onclick = function() {hideIbox();hideIndicator();loadCancelled = true;}
}


hideIndicator = function() {
	var ibox_p = getElem('ibox_progress');
	ibox_p.style.display = "none";
	//ibox_p.onclick = null;
}

var ibox_w_height = 0;

showIbox = function(url,title,params) {

    var ibox = getElem('ibox_wrapper');
	var ibox_type = 0;
												
	// set title here
	var ibox_footer = getElem('ibox_footer');
	if(title != "") {ibox_footer.innerHTML = title;} else {ibox_footer.innerHTML = "&nbsp;";}
	
	// file checking code borrowed from thickbox
	var urlString = /\.jpg|\.jpeg|\.png|\.gif|\.html|\.htm|\.php|\.cfm|\.asp|\.aspx|\.jsp|\.jst|\.rb|\.rhtml|\.txt/g;
	
	var urlType = url.match(urlString);

	if(urlType == '.jpg' || urlType == '.jpeg' || urlType == '.png' || urlType == '.gif'){
		ibox_type = 1;
	} else if(url.indexOf("#") != -1) {
		ibox_type = 2;
	} else if(urlType=='.htm'||urlType=='.html'||urlType=='.php'||
			 urlType=='.asp'||urlType=='.aspx'||urlType=='.jsp'||
			 urlType=='.jst'||urlType=='.rb'||urlType=='.txt'||urlType=='.rhtml'||
			 urlType=='.cfm') {
		ibox_type = 3;
	} else {
		// override our ibox type if forced param exist
		if(params['type']) {ibox_type = parseInt(params['type']);}
		else{hideIbox();return false;}
	}
	
	ibox_type = parseInt(ibox_type);

    
	switch(ibox_type) {
	   	
		case 1:

			showIndicator();
			
			imgPreloader = new Image();
			
			imgPreloader.onload = function(){
	
				imgPreloader = resizeImageToScreen(imgPreloader);
				hideIndicator();
	
				var strHTML = "<img name=\"ibox_img\" id=\"ibox_img\" src=\""+url+"\" style=\"width:"+imgPreloader.width+"px;height:"+imgPreloader.height+"px;border:0;cursor:hand;margin:0;padding:0;position:absolute;\"/>";
	
				if(loadCancelled == false) {
					
					// set width and height
					ibox.style.height = imgPreloader.height+'px';
					ibox.style.width = imgPreloader.width+'px';
				
					ibox.style.display = "";
					ibox.style.visibility = "hidden";
					posToCenter(ibox); 	
					ibox.style.visibility = "visible";
                    setIBoxContent(strHTML);
				}
					
			}
			
			loadCancelled = false;
			imgPreloader.src = url;
			
			break;

		case 2:
			
			var strHTML = "";

			
			if(params['height']) {ibox.style.height = params['height']+'px';} 
			else {ibox.style.height = '280px';}
			
			if(params['width']) {ibox.style.width = params['width']+'px';} 
			else {ibox.style.width = '450px';}

		
			ibox.style.display = "";
			ibox.style.visibility = "hidden";
			posToCenter(ibox); 	
			ibox.style.visibility = "visible";
			
			getElem('ibox_content').style.overflow = "auto";
			
			var elemSrcId = url.substr(url.indexOf("#") + 1,1000);
			
			var elemSrc = getElem(elemSrcId);
			
			if(elemSrc) {strHTML = elemSrc.innerHTML;}
		
			setIBoxContent(strHTML);
			
			break;
			
		case 3:
			showIndicator();
			http.open('get',url,true);

			http.onreadystatechange = function() {
				if(http.readyState == 4){
					hideIndicator();
					
					if(params['height']) {ibox.style.height = params['height']+'px';} 
					else {ibox.style.height = '280px';}
					
					if(params['width']) {ibox.style.width = params['width']+'px';} 
					else {ibox.style.width = '450px';}
		
					ibox.style.display = "";
					ibox.style.visibility = "hidden";
					posToCenter(ibox); 	
					ibox.style.visibility = "visible";
					getElem('ibox_content').style.overflow = "auto";
					
					var response = http.responseText;
					setIBoxContent(response);
					
				}
			}
			
			http.setRequestHeader("Content-Type","application/x-www-form-urlencoded; charset=UTF-8");
			http.send(null);
			break;
		
		default:
			
	 } 
	 
	
	ibox.style.opacity = 0;
	ibox.style.filter = 'alpha(opacity=0)';	
	var ibox_op_level = 10;
	
	setIboxOpacity = setOpacity;
	for (var i=0;i<=ibox_op_level;i++) {setTimeout("setIboxOpacity('ibox_wrapper',"+i+")",30*i);}

	return true;
}

setOpacity = function (elemid,value)	{
		var e = getElem(elemid);
		e.style.opacity = value/10;
		e.style.filter = 'alpha(opacity=' + value*10 + ')';
}

resizeImageToScreen = function(objImg) {
	
	var pagesize = new getPageSize();
	
	var x = pagesize.width - 100;
	var y = pagesize.height - 100;

	if(objImg.width > x) { 
		objImg.height = objImg.height * (x/objImg.width); 
		objImg.width = x; 
		if(objImg.height > y) { 
			objImg.width = objImg.width * (y/objImg.height); 
			objImg.height = y; 
		}
	} 

	else if(objImg.height > y) { 
		objImg.width = objImg.width * (y/objImg.height); 
		objImg.height = y; 
		if(objImg.width > x) { 
			objImg.height = objImg.height * (x/objImg.width); 
			objImg.width = x;
		}
	}

	return objImg;
}

maintPos = function() {
	
	var ibox = getElem('ibox_wrapper');
	var box_w = getElem('ibox_w');
	var pagesize = new getPageSize();
	var scrollPos = new getScrollPos();
	var ua = navigator.userAgent;

	if(ua.indexOf("MSIE ") != -1) {box_w.style.width = pagesize.width+'px';} 
	/*else {box_w.style.width = pagesize.width-20+'px';}*/

	if(ua.indexOf("Opera/9") != -1) {box_w.style.height = document.body.scrollHeight+'px';}
	else {box_w.style.height = pagesize.height+scrollPos.scrollY+'px';}
	
	// alternative 1
	//box_w.style.height = document.body.scrollHeight+50+'px';	
	
	posToCenter(ibox);
	
}

hideIbox = function() {
    hideBG();
	var ibox = getElem('ibox_wrapper');
	ibox.style.display = "none";

	clearIboxContent();
	window.onscroll = null;
}

posToCenter = function(elem) {
	var scrollPos = new getScrollPos();
	var pageSize = new getPageSize();
	var emSize = new getElementSize(elem);
	var x = Math.round(pageSize.width/2) - (emSize.width /2) + scrollPos.scrollX;
	var y = Math.round(pageSize.height/2) - (emSize.height /2) + scrollPos.scrollY;	
	elem.style.left = x+'px';
	elem.style.top = y+'px';	
}

getScrollPos = function() {
	var docElem = document.documentElement;
	this.scrollX = self.pageXOffset || (docElem&&docElem.scrollLeft) || document.body.scrollLeft;
	this.scrollY = self.pageYOffset || (docElem&&docElem.scrollTop) || document.body.scrollTop;
}

getPageSize = function() {
	var docElem = document.documentElement
	this.width = self.innerWidth || (docElem&&docElem.clientWidth) || document.body.clientWidth;
	this.height = self.innerHeight || (docElem&&docElem.clientHeight) || document.body.clientHeight;
}

getElementSize = function(elem) {
	this.width = elem.offsetWidth ||  elem.style.pixelWidth;
	this.height = elem.offsetHeight || elem.style.pixelHeight;
}

setIBoxContent = function(str) {
	clearIboxContent();
	var e = getElem('ibox_content');
	e.style.overflow = "auto";
	e.innerHTML = str;
	
}
clearIboxContent = function() {
    var e = getElem('ibox_content');
	e.innerHTML = "";

}


getElem = function(elemId) {
	return document.getElementById(elemId);	
}

// parseQuery code borrowed from thickbox, Thanks Cody!
parseQuery = function(query) {
   var Params = new Object ();
   if (!query) return Params; 
   var Pairs = query.split(/[;&]/);
   for ( var i = 0; i < Pairs.length; i++ ) {
      var KeyVal = Pairs[i].split('=');
      if ( ! KeyVal || KeyVal.length != 2 ) continue;
      var key = unescape( KeyVal[0] );
      var val = unescape( KeyVal[1] );
      val = val.replace(/\+/g, ' ');
      Params[key] = val;

   }
   
   return Params;
}

/********************************************************
 Make this IE7 Compatible ;)
 http://ajaxian.com/archives/ajax-on-ie-7-check-native-first
*********************************************************/
createRequestObject = function() {
	var xmlhttp;
	if (!xmlhttp && typeof XMLHttpRequest != "undefined") {
			try {xmlhttp = new XMLHttpRequest();} catch (e) {xmlhttp = false;}
	}
	return xmlhttp;
}

var http = createRequestObject();