/*
 * LeaveNotice - plug in to notify users of leaving your site
 * Examples and documentation at: http://rewdy.com/tools/leavenotice-jquery-plugin
 * Version: 1.1.1 (09/27/2010)
 * Copyright (c) 2010 Andrew Meyer
 * Licensed under the MIT License: http://en.wikipedia.org/wiki/MIT_License
 * Requires: jQuery v1.4+
*/

(function(jQuery){
	jQuery.fn.leaveNotice=function(opt){
		var defaults={
			siteName:window.location.href,
			exitMessage:"<p><strong>You have requested a website outside of {SITENAME}.</strong></p><p>Please return to our site to look at other companies we work with.</p>",
			preLinkMessage:"<div class='setoff'><p>You will now be directed to:<br/>{URL}</p></div>",
			linkString:"",
			timeOut:4000,
			overlayId:"ln-blackout",
			messageBoxId:"ln-messageBox",
			messageHolderId:"ln-messageHolder",
			displayUrlLength:50,
			overlayAlpha:0.3
			};
var options=jQuery.extend(defaults,opt);
return this.each(function(){
						  	el=jQuery(this);
							var url=el.attr('href');
							var ulen=options.displayUrlLength;
							if(url.length>=ulen){
								var suffix="..."
								}
								else{
									var suffix=""
									}
							var shortUrl=url.substr(0,ulen)+suffix;
							var title=el.attr('title');
							if(title!=""){
								var linkText=title
								}
								else if(title==""){
									var linkText=shortUrl
									}
							el.click(function(){
								jQuery('body').append('<div id="'+options.overlayId+'"></div>');
								jQuery('body').append('<div id="'+options.messageHolderId+'"><div id="'+options.messageBoxId+'"></div></div>');
								if(options.overlayAlpha!==false){
									jQuery('#'+options.overlayId).css('opacity',options.overlayAlpha)}preFilteredContent=options.exitMessage+options.preLinkMessage;
									msgContent=preFilteredContent.replace(/\{URL\}/g,'<a href="'+url+'" title="'+url+'"'+options.linkString+'>'+linkText+'</a>');
									msgContent=msgContent.replace(/\{SITENAME\}/g,options.siteName);
									if(options.timeOut>0){
										msgContent+='<p id="ln-cancelMessage"><a href="#close" id="ln-cancelLink">Cancel</a> or press the ESC key.</p>'
										}
										else{
											msgContent+='<p id="ln-cancelMessage">Click the link above to continue or <a href="#close" id="ln-cancelLink">Cancel</a></p>'
											}
									jQuery('#'+options.messageBoxId).append(msgContent);
									if(options.timeOut>0){leaveIn=setTimeout(function(){
										jQuery('#ln-cancelMessage').html('<em>Loading...</em>');
										window.open(url,'_blank','menubar=yes,toolbar=yes,location=yes,directories=yes,fullscreen=no,titlebar=yes,hotkeys=yes,status=yes,scrollbars=yes,resizable=yes'); closeDialog(options,leaveIn); return false;
										},options.timeOut)
									}
									else{leaveIn=false}
									jQuery('#ln-cancelLink').click(function(){closeDialog(options,leaveIn);
return false});
jQuery(document).bind('keyup',function(e){if(e.which==27){closeDialog(options,leaveIn)}});
$(window).unload(function(){closeDialog(options,leaveIn)});
return false})})};

function closeDialog(options,timer){
	if(options.timeOut>0){
		clearTimeout(timer)
		}
	jQuery('#'+options.overlayId+', #'+options.messageHolderId).fadeOut('fast',function(){jQuery('#'+options.overlayId+', #'+options.messageHolderId).remove()});
    jQuery(document).unbind('keyup')
	}
}
)
(jQuery);