var indicator_img_path = "vbox/indicator.gif";
var indicator_img_html = "<img name=\"vbox_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 vbox elements
	

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

var ___smg_vBox_tmpID = 0;

function init_vbox() {
	
	
	 // quit if this function has already been called
	 if (arguments.callee.done) return;
	
	 // flag this function so we don't do the same thing twice
	 arguments.callee.done = true;	
	
	
	var elem_wrapper = "vbox";
	
	createVbox(document.getElementsByTagName("body")[0]); //create our vbox

	//	elements here start the look up from the start non <a> tags
	//var docRoot = (document.all) ? document.all : document.getElementsByTagName("*");
	
	// Or make sure we only check <a> tags
	var docRoot = document.getElementsByTagName("a");

	var e;
	for (var i = 0; i < docRoot.length - 1; i++) {
			e = docRoot[i];
			if(e.getAttribute(ibAttr)) {
				var t = e.getAttribute(ibAttr);
				if ((t.indexOf("vbox") != -1)  ||  t.toLowerCase() == "vbox") { // check if this element is an vbox element
						e.onclick = function() { // rather assign an onclick event
							var t = this.getAttribute(ibAttr);
							var params = parseQuery(t.substr(5,999));
							var url = this.href;
							if(this.target != "") {url = this.target} 
	
							var title = this.title;

							if(showVbox(url,title,params)) {
								showBG();
								window.onscroll = maintPos;
								window.onresize = maintPos;
							}
							return false;
						}; 
						
				}
			}
     }
}

function detectMacXFForIE6() {
  
  var userAgent = navigator.userAgent.toLowerCase();
  //alert(userAgent);
  if (userAgent.indexOf('mac') != -1 && userAgent.indexOf('firefox')!=-1) {
    return true;
  }
  //if (userAgent.indexOf('msie 6') != -1 ) {
  //  return true;
  //}
}

showBG = function() {
	var box_w = getElem('vbox_w');
	
	  var d = detectMacXFForIE6();
	  if (d) {
	  	
	    //osx ff css opacity + flash wmode transparent doesn't work
	    box_w.style.opacity = 1;
	    box_w.style.filter = 'alpha(opacity=1)';
	    box_w.style.backgroundImage= "url(vbox/grey.png)";
	    box_w.style.backgroundRepeat="repeat";
	    
	  } 
	  else {
	  	
	    box_w.style.opacity = 0;
		box_w.style.filter = 'alpha(opacity=0)';
		setBGOpacity = setOpacity;
		box_w.style.backgroundColor = "#000";
		
		setOpacity('vbox_w',opacity_level);
		
	    //for (var i=0;i<=opacity_level;i++) {setTimeout("setVboxOpacity('vbox_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('vbox_w');
	box_w.style.display = "none";

}

var loadCancelled = false;
showIndicator = function() {
	var vbox_p = getElem('vbox_progress');
	vbox_p.style.display = "";
	posToCenter(vbox_p);
	vbox_p.onclick = function() {hideVbox();hideIndicator();loadCancelled = true;}
}


hideIndicator = function() {
	var vbox_p = getElem('vbox_progress');
	vbox_p.style.display = "none";
	vbox_p.onclick = null;
}

createVbox = function(elem) {
	// a trick on just creating an vbox wrapper then doing an innerHTML on our root vbox element
	var strHTML = "<div id=\"vbox_w\" style=\"display:none;\" onClick=\"hideVbox();\"></div>";
	strHTML +=	"<div id=\"vbox_progress\" style=\"display:none;\">";
	strHTML +=  indicator_img_html;
	strHTML +=  "</div>";
	strHTML +=	"<div id=\"vbox_wrapper\" style=\"display:none;text-align:left;\">";
	strHTML +=	"<div id=\"vbox_content\"></div>";
	strHTML +=	"<div id=\"vbox_footer_wrapper\" onClick=\"hideVbox();\"><div id=\"vbox_close\" style=\"float:right;\">";
	strHTML +=	"<a id=\"vbox_close_a\" href=\"javascript:void(null);\">click here to close</a></div>";
	strHTML +=  "<div id=\"vbox_footer\">&nbsp;</div></div></div></div>";

	var docBody = document.getElementsByTagName("body")[0];
	var vbox = document.createElement("div");
	vbox.setAttribute("id","vbox");
	vbox.style.display = '';
	vbox.innerHTML = strHTML;
	elem.appendChild(vbox);
}

var vbox_w_height = 0;
showVbox = function(url,title,params) {
	
	var vbox = getElem('vbox_wrapper');
	var vbox_type = 0;
												
	// set title here
	var vbox_footer = getElem('vbox_footer');
	if(title != "") {vbox_footer.innerHTML = title;} else {vbox_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'){
		vbox_type = 1;
	} else if(url.indexOf("#") != -1) {
		vbox_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') {
		vbox_type = 3;
	} else {
		// override our vbox type if forced param exist
		if(params['type']) {vbox_type = parseInt(params['type']);}
		else{hideVbox();return false;}
	}
	
	vbox_type = parseInt(vbox_type);


	switch(vbox_type) {
		
		case 1:

			showIndicator();
			
			imgPreloader = new Image();
			
			imgPreloader.onload = function(){
	
				imgPreloader = resizeImageToScreen(imgPreloader);
				hideIndicator();
	
				var strHTML = "<img name=\"vbox_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
					vbox.style.height = imgPreloader.height+'px';
					vbox.style.width = imgPreloader.width+'px';
				
					vbox.style.display = "";
					vbox.style.visibility = "hidden";
					posToCenter(vbox); 	
					vbox.style.visibility = "visible";

					setVBoxContent(strHTML);
				}
					
			}
			
			loadCancelled = false;
			imgPreloader.src = url;
			
			break;

		case 2:
			
			var strHTML = "";

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

		
			vbox.style.display = "";
			vbox.style.visibility = "hidden";
			posToCenter(vbox); 	
			vbox.style.visibility = "visible";
			
			getElem('vbox_content').style.overflow = "auto";
			
			var elemSrcId = url.substr(url.indexOf("#") + 1,1000);
			
			var elemSrc = getElem(elemSrcId);
			
			if(elemSrc) {strHTML = elemSrc.innerHTML;}
		
			setVBoxContent(strHTML);
			
			break;
			
		case 3:
			showIndicator();
			var url2 = url+'?rnd='+Math.random();
			http.open('get',url2,true);
			
			if(params['videoID'])
				___smg_vBox_tmpID=params['videoID'];
			if(params['aspect'])
				___smg_vBox_aspect=params['aspect'];
			else
				___smg_vBox_aspect="43";
			
			http.onreadystatechange = function() {
				if(http.readyState == 4){
					hideIndicator();
					
					if(params['height']) {vbox.style.height = params['height']+'px';} 
					else {vbox.style.height = '330px';}
					
					if(params['width']) {vbox.style.width = params['width']+'px';} 
					else {vbox.style.width = '530px';}
						
					vbox.style.display = "";
					vbox.style.visibility = "hidden";
					posToCenter(vbox); 	
					vbox.style.visibility = "visible";
					getElem('vbox_content').style.overflow = "auto";
					
					var response = http.responseText;
										
					setVBoxContent(response);					
					eval(document.getElementById('js').innerHTML);
					//alert(document.getElementById('js').innerHTML);
				}
			}
			
			http.setRequestHeader("Content-Type","application/x-www-form-urlencoded; charset=UTF-8");
			http.send(null);
			break;
		
		default:
			
	 } 
	 
	
	vbox.style.opacity = 0;
	vbox.style.filter = 'alpha(opacity=0)';	
	var vbox_op_level = 10;
	
	setVboxOpacity = setOpacity;
	for (var i=0;i<=vbox_op_level;i++) {setTimeout("setVboxOpacity('vbox_wrapper',"+i+")",30*i);}

	if(vbox_type == 2 || vbox_type == 3) {
		vbox.onclick = null;getElem("vbox_close_a").onclick = function() {hideVbox();}
	} else {vbox.onclick = hideVbox;getElem("vbox_close_a").onclick = null;}

	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 vbox = getElem('vbox_wrapper');
	var box_w = getElem('vbox_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(vbox);
	
}

hideVbox = function() {
	hideBG();
	var vbox = getElem('vbox_wrapper');
	vbox.style.display = "none";

	clearVboxContent();
	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;
}

setVBoxContent = function(str) {
	clearVboxContent();
	
	var e = getElem('vbox_content');
	e.style.overflow = "auto";
	//e.style.verticalAlign = "middle";
	e.innerHTML = str;
	
}
clearVboxContent = function() {
	var e = getElem('vbox_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;
}

// hide vbox once ESC key pressed
function keyPressHandler(e) {
  var kC  = (window.event) ?    // MSIE or Firefox?
             event.keyCode : e.keyCode;
  var Esc = (window.event) ?   
            27 : e.DOM_VK_ESCAPE // MSIE : Firefox
  if(kC==Esc)
     //alert("Esc pressed")
     hideVbox()
}
document.onkeypress = keyPressHandler;

/********************************************************
 Make this IE7 Compatible ;)
 http://ajaxian.com/archives/ajax-on-ie-7-check-native-first
*********************************************************/
createRequestObject = function() {
	var xmlhttp;
		/*@cc_on
	@if (@_jscript_version>= 5)
			try {xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
			} catch (e) {
					try {xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");}
					catch (E) {xmlhttp = false;}
			}
	@else
		xmlhttp = false;
	@end @*/
	if (!xmlhttp && typeof XMLHttpRequest != "undefined") {
			try {xmlhttp = new XMLHttpRequest();} catch (e) {xmlhttp = false;}
	}
	return xmlhttp;
}

var http = createRequestObject();

function addEvent(obj, evType, fn){ 
 
 if (/WebKit/i.test(navigator.userAgent)) { // for Safari
    var _timer = setInterval(function() {
        if (/loaded|complete/.test(document.readyState)) {
            init_vbox(); // call the onload handler
        }
    }, 10);
 } else if (document.all){ // for IE
 	/*@cc_on @*/
	/*@if (@_win32)	
	 document.write("<script defer src=vbox/vbox_onload.js><"+"/script>");
	 /*@end @*/
   return true; 
 } else if (obj.addEventListener){ 		 // for Mozilla
	 obj.addEventListener("DOMContentLoaded", fn, false); 
   return true; 
 } else if (obj.attachEvent){ 
   var r = obj.attachEvent("on"+evType, fn); 
   return r; 
 } else { 
   return false; 
 } 
}

addEvent(window, 'load', init_vbox);
var ___smgPlayer;