/*
Symbicort additional JS functions

*/


function fnSwitchpage(the_form){
 	//Get the selected link URL from the dropdown
  	var link_chosen;
  	link_chosen=the_form.selection.options[the_form.selection.selectedIndex].value;	
 	//Redirect to this URL
 	window.location=link_chosen;
 	return false;
}

function hideSearchText(the_form)
{
	var defaultValue;
	var inputValue;
	inputValue=the_form.bsterm.value;

	if(inputValue == 'Search Symbicort.com here'){
	the_form.bsterm.value = '';
	}

	else if(inputValue == '' || inputValue == null){
		the_form.bsterm.value = 'Search Symbicort.com here';
	}
}


function registeredSymbolChange(){
	var el;
	var elText;
	el=document.getElementsByTagName('H1')[0];
	elText=el.firstChild.nodeValue;
	el.firstChild.nodeValue=elText.replace('®','<span class="superscript">®</span>');
}

function redefineOpacity() {
    //simply sets the minimum opacity
    minOpacity = 0.1;
}

function privacyPopup(){
	if(!!$('privacy-popup')){
	$$('a#open-popup')[0].observe('click',function(e){
			if(!e.stop)e.stopped;
			$$('div#privacy-popup')[0].style.display="block";
	});
	$$('a#close-popup')[0].observe('click',function(e){
			if(!e.stop)e.stopped;
			$$('div#privacy-popup')[0].style.display="none";
	});
	}
}

var prototypeAZSymbicortFunctions = function(){
	//anything here is private
	var default_container_name = 'overlay_container_exitramp'; 
	// Used to store scroll bar position
	var lastScrollPositon =0;

	return{
		
		//anything here is public. Call using prototypeAZFunctions.functionName();
		
		hasPrototype : function(){
			return typeof Prototype !== 'undefined';
		},
				
		addExitRamps : function(){
			var callBacks = [prototypeAZSymbicortFunctions.exitRamp];
			$$('select.exit_ramp_new').each(function(el){
				//this is the element where the response should be directed     
				//replace the existing link with an AJAX request
					
					el.observe('change',prototypeAZSymbicortFunctions.simpleAjaxUpdater.curry(callBacks));
			});
			$$('a.exit_ramp_new').each(function(el){
				//this is the element where the response should be directed     
				//replace the existing link with an AJAX request
					
					el.observe('click',prototypeAZSymbicortFunctions.simpleAjaxUpdater.curry(callBacks));
			});
			
		},
		
		/*Suitable for retrieving an item based on the path of the anchor clicked*/
		simpleAjaxUpdater : function(callBacks, event){
			//event last as a result of use of curry
			//pull the necessary information from the updater
			//this format should be used for all requests which are AJAX enabled
			//first of all, kill the request
			
			if(!event.stopped){
				event.stop();
			event.cancelBubble=true; 
			}	
			
			var href = prototypeAZSymbicortFunctions.getEventHref(event);
			//ie is returning undefined here when a stopped event is passed as an argument
			//try with a proxy object instead of an event perhaps?
			if(href.indexOf('exitramps')!="-1"){
			
			lastScrollPositon=f_scrollTop();
			
			var params = {};
			params['ajaxSource'] = true;//makes webapp believe this is an AJAX request (same syntax as a Spring AJAX request)
			var target;
			if(!$(default_container_name)){
				target = new Element('div');
				//native JS method here
				target.setAttribute('id',default_container_name);
				document.body.appendChild(target);
			}else{
				target = $(default_container_name);
			}
			
			var updater = new Ajax.Updater(target,href,{
				method: 'get',
				parameters: params,
				onSuccess: function(){prototypeAZSymbicortFunctions.fadeOutBackground();},
				onComplete: function(){
					//TODO refactor this
					for(j=0;j<callBacks.length;j++){
					try{
						//attempt to call the function
						callBacks[j].call();
					}catch(e){}
						//
					}
					//now move to where the overlay has appeared
					target.scrollTo();
				}	
			});}
		},

		exitRamp : function(){
			//make continue button track google analytics
			$$('div[id="' + default_container_name + '"] .continue').each(function(el){
				// urlId = one
				if(el.getAttribute('id') == 'one') {
					el.observe('click',function(event){					
					_gaq.push(['_trackEvent', 'Interstitial', 'Click', 'Patient Redirect']);
				
				});
				}
				// urlId = two
				if(el.getAttribute('id') == 'two') {
					el.observe('click',function(event){					
					_gaq.push(['_trackEvent', 'Interstitial', 'Click', 'Journalist Redirect']);

				});
				}
				// urlId = three
				if(el.getAttribute('id') == 'three') {
					el.observe('click',function(event){					
					_gaq.push(['_trackEvent', 'Interstitial', 'Click', 'US Redirect']);

				});
				}
				// urlId = four
				if(el.getAttribute('id') == 'four') {
					el.observe('click',function(event){					
					_gaq.push(['_trackEvent', 'Interstitial', 'Click', 'Netherlands Redirect']);

				});
				}
				
			});
			
			//make cancel button just empty the overlay
			
			$$('div[id="' + default_container_name + '"] .cancel').each(function(el){
				el.observe('click',function(event){
					if(!$('overlay_background_exitramp')){
						prototypeAZSymbicortFunctions.hideOverlay(el, event, true);
						$$('select.exit_ramp_new').each(function(el){ el.selectedIndex=0;});
					}
				});
			});
		}, 
		
		
		fadeOutElement : function(el){
			//check whether the body is already faded
			if(!!$('overlay_container')){
			var fadedSelector = new Selector('.faded');
			if(!fadedSelector.match(docBody)){
				el.fade({duration:0.5, from:1, to:minOpacity});
				$('overlay_container').addClassName('faded');
				$('overlay_container').addClassName('bottomlayer');
			}	
			}else{
			var fadedSelector = new Selector('.faded');
			var docBody = document.body;
			if(!fadedSelector.match(docBody)){
				el.fade({duration:0.5, from:1, to:minOpacity});
				docBody.addClassName('faded');
				$$('body div')[0].addClassName('bottomlayer');
			}	
			}
		},		
		fadeOutBackground : function(){
			if(!!$('overlay_container')){
			prototypeAZSymbicortFunctions.fadeOutElement($('overlay_container'));
			}else{
			prototypeAZSymbicortFunctions.fadeOutElement($$('body div')[0]);
			}
		},
		fadeInBackground : function(){
			if(!!$('overlay_container')){
			$('overlay_container').removeClassName('faded');
			$('overlay_container').fade({duration:0.5, from:minOpacity, to:1});
			$('overlay_container').removeClassName('bottomlayer');
			}else{
			document.body.removeClassName('faded');
			var firstDescendant = $$('body div')[0];
			firstDescendant.fade({duration:0.5, from:minOpacity, to:1});
			firstDescendant.removeClassName('bottomlayer');
			}
			
		},
		hideOverlay : function(el, event, stopEvent){
			if(stopEvent){
				event.stop();
			}	
			//fade out the link, then remove it
			$(default_container_name).fade({duration:1.0, from:1, to:0});
			$(default_container_name).remove();
			prototypeAZSymbicortFunctions.fadeInBackground();	
			window.scrollTo(0,lastScrollPositon);
		},
		
		
		getEventHref : function(event){

			if(event.proxyEvent){
				return event.targetHref;
			}else if(Event.element(event).tagName=="SELECT"){	
				var choice= event.findElement('form');
				return $(choice).selection.options[$(choice).selection.selectedIndex].value;
			}else if(Event.element(event).tagName=="A"){	
				var choice= event.findElement('a');
				return $(choice).href;
			}		
		}	
	};
}(); 

function addSymbicortPrototypeEffects(){
	if(prototypeAZFunctions && prototypeAZSymbicortFunctions.hasPrototype()){
		prototypeAZSymbicortFunctions.addExitRamps();
	}	
	
}

var toCall=new Array;	
toCall[0]=registeredSymbolChange;
toCall[1]=redefineOpacity;
toCall[2]=privacyPopup;
toCall[3]=addSymbicortPrototypeEffects;