questia.Package( "retail.subscribe" );

retail.subscribe.collectionSelected = function(evt) { 	 	 
	
	  var invoiceImage;		
		  
   	  $('.youSelectedContainer').removeClass( 'youSelectedContainer' ).addClass( 'youSelectedContainer_off' );
   	  var collectionsUL = '<ul>';
   	  var skuBoxes = $(':input:checkbox:checked.skuCheck');  
   	  var numSkus = skuBoxes.size();
   	  
   	  if ( (evt && evt.source.id == 'entireLibraryCheck' && evt.source.checked) ) { 
   	  	 numSkus = 0;
   	  } else {
   	  	 skuBoxes.each( function(i) { 
   	     	var skuid = this.id.split('.')[0];
	   	    var skulabel = coreweb.common.trim( $('#'+skuid+'_description').text() );
   		   collectionsUL += '<li>' + skulabel + '</li>';
   	     });
   	  }
   	  collectionsUL += '</ul>';   	  
	  if ( numSkus == 1 ) {  	 			  
	     
	     $('#youSelectedContainer' + numSkus + ' ul').replaceWith( collectionsUL );
  	     $('#youSelectedContainer' + numSkus ).removeClass( 'youSelectedContainer_off' ).addClass( 'youSelectedContainer' ); 
   	     $('#entireLibraryCheck').attr( { checked: false} );
   	     
   	     invoiceImage = '/retail/subscribe/images/invoice_' + numSkus + '.gif';		  
		 if(questia.Dictionary.subscribe.discountType == '25Off') {
			 invoiceImage = '/retail/subscribe/images/1_collection_invoice_971.gif';
		 }		
		 if(questia.Dictionary.subscribe.discountType == 'bumpedUp') {
			 invoiceImage = '/retail/subscribe/images/1_collection_invoice_1295.gif';
		 }
   	        	     
   	     document.getElementById('PriceId2').style.display = 'none'; 
   	     document.getElementById('PriceId3').style.display = 'none';   	     
   	     
  	  } else if ( numSkus == 0 || numSkus > 1 ) {  
  		  
  	     $('#youSelectedContainerEntire' ).removeClass( 'youSelectedContainer_off' ).addClass( 'youSelectedContainer' );
  	     $('#entireLibraryCheck').attr( { checked: true } );
  	     $(':input:checkbox:checked.skuCheck:not(:disabled)').attr( { checked: false } );
  	       	    
		 invoiceImage = '/retail/subscribe/images/entire_library_invoice.gif';		  
		 if(questia.Dictionary.subscribe.discountType == '25Off') {
			 invoiceImage = '/retail/subscribe/images/entire_library_invoice_1946.gif';
		 }			
		 if(questia.Dictionary.subscribe.discountType == 'bumpedUp') {
			 invoiceImage = '/retail/subscribe/images/entire_library_invoice_2595.gif';
		 }		
  	       	    
  	     document.getElementById('PriceId2').style.display = 'none';
 	     document.getElementById('PriceId3').style.display = 'none'; 	     
  	  }
	  
   	  $('#invoiceImage').attr( { 'src': invoiceImage } );
}


retail.subscribe.chooseCollectionValidate = function() {
	
	/**
	* validate that user attempting to upgrade must select one more collection than their current number or
	* entire library
	*/
	if ( !$('#entireLibraryCheck').attr( 'checked' ) ) {
	     var numSkus = $(':input:checkbox:checked.skuCheck').size();
  	     if ( $(':input:checkbox:checked.skuCheck:disabled').size() == numSkus ) {
  	        alert( 'Please select at least one more collection or the entire library to upgrade.' );
  	       	return false;
  	     }
    }
}


$(document).ready(function() {
   questia.Events.register( 'sku.box', '*', retail.subscribe.collectionSelected );
   if ( questia.Dictionary.subscribe.entireLibrary ) {
       $('#entireLibraryCheck').attr( { checked: true } );
       retail.subscribe.collectionSelected( { source: { id: 'entireLibraryCheck', checked: true } } );
   } else {
   	   retail.subscribe.collectionSelected(); // initialize view
   }
});