//set script vars from request string 
var subject = '-3';
var showLoc = 'true';

//load jQuery programmatically
WZ_loadScript('http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js');

//wait for jQuery to load and then call jQuery_Loaded function
function WZ_jQWait() { 
	//alert('waitStarted');
	if (typeof jQuery == 'undefined') { 
		window.setTimeout(WZ_jQWait, 100); 
	} else { 
		$ = jQuery; 
		jQuery_Loaded(); 
	} 
} 

WZ_jQWait(); 

//exectued after jQuery has loaded
function jQuery_Loaded() { 
	//alert($); 
	var qs = new Querystring();
	if (qs.contains('subject'))
	{
		//override the default subject that was passed in with the script request
		subject = qs.get('subject');
	}
	
	var scriptLoc = 'http://www.wyzant.com/AffiliatesWidget/WidgetServer.aspx?subject=' + subject;
	if (qs.contains('zip'))
	{
		scriptLoc = scriptLoc + '&zip=' + qs.get('zip');
	}
	
	scriptLoc = scriptLoc + '&showLoc=' + showLoc;
	WZ_loadScript(scriptLoc);	
}

function WyzAntSearchBTN_Clicked() {
	var docLoc = document.location.href;
	var zipVal = $('#ZipTB').val();
	//var subjectVal = $('.WyzSubjectsDDL').val();
	subjectVal = $('#SubjectTB').val();
	if (docLoc.indexOf('?') > -1)
	{ 
		//qs already exists so see if zip is already in it
		
		var zipRegex = /zip=\d*/i;
		if (docLoc.match(zipRegex))
		{
			//zip is already in qs so replace it
			var newZipStr = 'zip=' + zipVal;
			docLoc = docLoc.replace(zipRegex, newZipStr);
		}
		else
		{
			//no zip in qs so add it
			docLoc = docLoc + '&zip=' + zipVal;
		}
	}
	else
	{
		//no qs so add it
		docLoc = docLoc + '?zip=' + zipVal;
	} 
	
	var subjectRegex = /&subject=.*/i;
	if (subjectVal.length > 0)
	{
		if (docLoc.match(subjectRegex))
		{
			docLoc = docLoc.replace(subjectRegex, '&subject=' + subjectVal);
		}
		else
		{
			docLoc = docLoc + '&subject=' + subjectVal;
		}
	}
	else if (docLoc.match(subjectRegex))
	{
		docLoc = docLoc.replace(subjectRegex, '');
	}	
	
	document.location = docLoc;
	return false;
}
 
function WZ_loadScript(src) { 
	var script = document.createElement('script'); 
	script.src = src; 
	script.type = 'text/javascript'; 
	document.getElementsByTagName('head')[0].appendChild(script); 
}

/* Client-side access to querystring name=value pairs 
		Version 1.3 
		28 May 2008 

		License (Simplified BSD): 
		http://adamv.com/dev/javascript/qslicense.txt 
*/ 
function Querystring(qs) { 
	// optionally pass a querystring to parse
	this.params = {}; 
	if (qs == null) 
		qs = location.search.substring(1, location.search.length); 
	if (qs.length == 0) 
		return; 
	// Turn <plus> back to <space>
	// See: http://www.w3.org/TR/REC-html40/interact/forms.html#h-17.13.4.1 
	qs = qs.replace(/\+/g, ' '); 
	var args = qs.split('&'); 
	// parse out name/value pairs separated via & 
	// split out each name=value pair 
	for (var i = 0; i < args.length; i++) { 
		var pair = args[i].split('='); 
		var name = decodeURIComponent(pair[0]); 
		var value = (pair.length==2) ? decodeURIComponent(pair[1]) : name; this.params[name] = value; 
	} 
}

Querystring.prototype.get = function(key, default_) { 
	var value = this.params[key]; 
	return (value != null) ? value : default_; 
} 

Querystring.prototype.contains = function(key) { 
	var value = this.params[key]; 
	return (value != null); 
}