Volusion - Reload selected product options when clicking back to product page from Shopping Cart

volusion-product-page-reload-options.js

if(!VOLUSION_HELPERS){
	throw new Error('Volusion Helpers functions not available. Aborting.');
}

var PRODUCT_PAGE_OPTIONS = PRODUCT_PAGE_OPTIONS || {};

PRODUCT_PAGE_OPTIONS.ajax = {
	updateOptions: function( cartItemUrl ){
		jQuery.get( cartItemUrl, function( data ) {
			// Parse the list items
			var list_items = jQuery('li', jQuery(data));
			var options = [];

			jQuery.each(list_items, function(){
				option_text = jQuery(this).text();
				var matches = option_text.match(/^(.*?)(:)(.*)/);
				
				/*
				* Appended a colon to the end of the option name
				* because that's how we will match it on the product
				* page.
				*/
				var option_name = matches[1] + ':';
				var option_value = matches[3];

				// Find the option name on the page
				var option_row = jQuery('#options_table tr:contains(' + option_name + ')');

				/*
				* @todo Need to deal with instances where this option name matches
				* more than one option row.
				*/
				if(option_row.length > 1){
					return;
				}

				// Change the value
				var option_item = option_row.find('select, input');
				
				// Handle for select items
				if(option_item.is('select')){
					option_item.find('option').each(function(){
						if( jQuery(this).text().indexOf(option_value) >= 0){
							var option_number_value = jQuery(this).val();
							option_item.val(option_number_value);
							return false;
						}
					});
				}

				// Handle for text inputs
				if(option_item.is('input')){

				}

			});
		});
	},

	deleteOriginalFromCart: function(){
		jQuery.get( removeFromCartLink, function( data ) {
			console.log('removed!');
		});
	}
}

jQuery(document).ready(function(){
	if( VOLUSION_HELPERS.detect.isProductPage() ){
		if( VOLUSION_HELPERS.helper.getParameterByName('CartID') != '' && VOLUSION_HELPERS.helper.getParameterByName('CartID') != null ){
			var CartID = VOLUSION_HELPERS.helper.getParameterByName('CartID');
			var cartItemUrl = "/Help_CartItemDetails.asp?CartID=" + CartID;
			var removeFromCartLink = "/ShoppingCart.asp?remove=" + CartID;

			PRODUCT_PAGE_OPTIONS.ajax.updateOptions( cartItemUrl );

			jQuery('input[name="btnaddtocart"]').click(function(){
				PRODUCT_PAGE_OPTIONS.ajax.deleteOriginalFromCart();
			});
		}
	}
});

Keep in mind that this has not been heavily tested so any updates would be great.

This also depends on our Volusion Javascript helper class which can be found here:
https://github.com/Miller-Media/volusion-javascript-helper-class