What I propose is designing a manager class to maintain all functions/methods that must interact with the UI. This allows you to define your data set in one place, and keep the UI binds in one place. By doing so, you set yourself up with a cleaner code base, easy refactoring, and quickly make code modifications. Also, you get all this goodness without any global variables, another great bonus.
The code does look like its larger, but once you understand the simplicity of the manager you will see the possibilities I outlined above.
$(document).ready(function () {
//Create a new Kit Manager
var kitManager = new KitManager();
$(".buttons").click(function () {
kitManager.add(this);
});
$(".report").click(function () {
kitManager.getKit();
});
});
function KitManager()
{
//Static amount of items to return
var MAX_ITEMS = 5;
//Where the items should be visually displayed on the UI
var kitLegend = $("#buildyourkit");
//Internal array for storing the items added
var items = []
function add(element)
{
if(items.length < MAX_ITEMS)
{
var itemNumber = items.length + 1;
var item = $(element).html();
var fieldWrapper = $("<div class=\"fieldwrapper\" id=\"field" + itemNumber + "\"/>");
var removeButton = $("<input type=\"button\" class=\"remove\" value=\"Remove\" />");
//Add item to the array collection
items.push(item);
//Bind a remove function to the newly created button
removeButton.click(function () {
kitLegend[0].removeChild(fieldWrapper[0]);
items.splice(itemNumber, 1);
});
//Append UI components to container
fieldWrapper.append(item).append(removeButton);
//Append to main legend
kitLegend.append(fieldWrapper);
}
else
{
//Simple alert to user
alert('You\'ve Reached The Maximum Number of Items');
}
}
//Simple function for demonstration of a reporting feature
//or potential method for returning the stored items
function getKit()
{
for(var i=0,length=items.length;i <length;i++)
{
console.log(items[i]);
}
}
//Expose public method call
return {
add:add,
getKit: getKit
};
}
http://jsfiddle.net/x97S5/
I hope you find the solution acceptable, and if you have any further questions please ask.
For more information on the solution and technique proposed take a look at Key Principles of Maintainable JavaScript