/********************************************************
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 indicator_img_html = "&nbsp;"; 

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

var ibox_classes = new Array("html-box", "zoom-in-image", "ibox", "thickbox");
	

var imgPreloader = new Image(); // create an preloader object
function initIbox() {
	var elem_wrapper = "ibox";
	
	createIbox(document.getElementById('content')); //create our ibox

	//	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.className) {
				var t = e.className;
				for(var x in ibox_classes) {
					if ((t.indexOf(ibox_classes[x]) != -1)) { // check if this element is an iBox element
							e.onclick = function() { // rather assign an onclick event
								this.blur();
								var t = this.className;
								var url = this.href;
								if(url.indexOf("?")!==-1){ //If there is a query string involved
									var baseurl = url.substr(0, url.indexOf("?"));
							   }else{ 
							   		var baseurl = url;
							  }
							  
							  var queryString = url.replace(/^[^\?]+\??/,'');
								var params = parseQuery( queryString );
								
								if(this.target != "") {baseurl = this.target} 
		
								var title = this.title || this.getAttribute('tip');
	
								if(showIbox(baseurl,title,params)) {
									showBG();
									window.onscroll = maintPos;
									window.onresize = maintPos;
								}
								return false;
							}; 
							
					}
				}
			}
     }
}

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;
	
	box_w.style.height = pagesize.height+scrollPos.scrollY+'px';
	
	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-20+'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;
}

createIbox = function(elem) {
	// a trick on just creating an ibox wrapper then doing an innerHTML on our root ibox element
/*	var strHTML = "<iframe id=\"ibox_w\" style=\"display:none;\"></iframe>";
	strHTML +=	"<div id=\"ibox_progress\" style=\"display:none;\">";
		strHTML +=  indicator_img_html;
	strHTML +=  "</div>";
	strHTML +=	"<div id=\"ibox_wrapper\" style=\"display:none\">";
		strHTML +=	"<div id=\"ibox_content\">";
			strHTML +=	"<div id=\"ibox_header\">";
				strHTML +=	"<div id=\"ibox_title\">";
				strHTML +=	"</div>";
				strHTML +=	"<div id=\"ibox_close\"><a id=\"ibox_close_a\" href=\"#\" >x</a>";
				strHTML +=	"</div>";
			strHTML +=	"</div>";
			strHTML +=	"<div id=\"i_con\">";
			strHTML +=	"</div>";
		strHTML +=	"</div>";
	strHTML +=  "</div>"; */
	
	var strHTML = "<iframe id=\"ibox_w\" style=\"display:none;\"></iframe>";
	strHTML +=	"<div id=\"ibox_progress\" style=\"display:none;\">";
		strHTML +=  indicator_img_html;
	strHTML +=  "</div>";
	strHTML +=	"<div id=\"ibox_wrapper\" style=\"display:none\">";
			strHTML +=	"<div id=\"ibox_header\">";
				strHTML +=	"<div id=\"ibox_title\">";
				strHTML +=	"</div>";
				strHTML +=	"<div id=\"ibox_close\"><a id=\"ibox_close_a\" href=\"#\" >x</a>";
				strHTML +=	"</div>";
			strHTML +=	"</div>";
		strHTML +=	"<div id=\"ibox_content\">";
			strHTML +=	"<div id=\"i_con\">";
			strHTML +=	"</div>";
		strHTML +=	"</div>";
	strHTML +=  "</div>";

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

var ibox_w_height = 0;
showIbox = function(baseurl,title,params) {
	
	
	hideTip();
	
	var ibox = getElem('ibox_wrapper');
	var ibox_type = 0;
												
	// set title (not) 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 = baseurl.toLowerCase().match(urlString);

	if(urlType == '.jpg' || urlType == '.jpeg' || urlType == '.png' || urlType == '.gif'){
		ibox_type = 1;
	} else if(baseurl.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 = "<h1 class='caption'>"+title+"</h1><img name=\"ibox_img\" src=\""+baseurl+"\" style=\"width:"+imgPreloader.width+"px;height:"+imgPreloader.height+"px;\"/>";
	
				if(loadCancelled == false) {
					
					// set width and height
					
					if(params['height']) {ibox.style.height = params['height']+'px';} 
					else {ibox.style.height = imgPreloader.height+82+'px';}
					
					if(params['width']) {ibox.style.width = params['width']+'px';} 
					else {ibox.style.width = imgPreloader.width+2+'px';}
					
					//ibox.style.height = imgPreloader.height+60+'px';
					//ibox.style.width = imgPreloader.width+'px';
				
					ibox.style.display = "";
					ibox.style.visibility = "hidden";
					posToCenter(ibox); 	
					ibox.style.visibility = "visible";
					
					//setIBoxContent(strHTML);
					setContent('i_con', strHTML);
					getElem('ibox_header').className += " imgdisplay";
				}
					
			}
			
			loadCancelled = false;
			imgPreloader.src = baseurl;
			
			break;

		case 2:
			
			var strHTML = "";

			
			if(params['height']) {ibox.style.height = params['height']+'px';} 
			else {ibox.style.height = '400px';}
			
			if(params['width']) {ibox.style.width = params['width']+'px';} 
			else {ibox.style.width = '600px';}

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

			http.onreadystatechange = function() {
				if(http.readyState == 4){
					hideIndicator();
					if(params['height']) {ibox.style.height = params['height']+'px';} 
					else {ibox.style.height = '400px';}
					
					if(params['width']) {ibox.style.width = params['width']+'px';} 
					else {ibox.style.width = '600px';}
		
					ibox.style.display = "";
					ibox.style.visibility = "hidden";
					posToCenter(ibox); 	
					ibox.style.visibility = "visible";
					getElem('i_con').style.overflow = "auto";
					
					var response = http.responseText;
					
					setContent('ibox_title', title);
					//setIBoxContent(response);
					setContent('i_con', response);
					
				}
			}
			
			http.setRequestHeader("Content-Type","application/x-www-form-urlencoded; charset=UTF-8");
			http.send(null);
			break;
		
		default:
			
	 } 
	 
	// go and fade anywhere else 
	/*
	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);}
	*/

	if(ibox_type == 2 || ibox_type == 3) {
		ibox.onclick = null; getElem("ibox_close_a").onclick = function() {hideIbox(); return false;};
	} else {ibox.onclick = function() {hideIbox(); return false;}; getElem("ibox_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 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";
	
	var i_con = getElem('i_con');
	i_con.style.overflow = "visible";

	//clearIboxContent();
	clearContent ('i_con');
	clearContent('ibox_title');

	getElem('ibox_header').className = getElem('ibox_header').className.replace(/imgdisplay/, '');
	
	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 = "";
}

setContent = function(elem, str) {
	clearContent(elem);
	var e = getElem(elem);
	//e.style.overflow = "auto";
	e.innerHTML = str;
	
}
clearContent = function(elem) {
	var e = getElem(elem);
	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;
		/*@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();