Gets datas form your HTML form and generates a JSON Object out of it!

Form2JSON.js

function toJSON(node){

        if(!$(node).children().length) return $(node).val();

	var json = new Object();

	$(node).children('[name]').each(function(){

		if($(this).siblings("[name="+$(this).attr('name')+"]").length){

			if(!json[$(this).attr('name')]) json[$(this).attr('name')] = [];

			json[$(this).attr('name')].push(toJSON(this));

		}else if($(this).children('[name]').length){

			json[$(this).attr('name')] = toJSON(this);

		}else{

			json[$(this).attr('name')] = $(this).val();	

		}			

	});	

	return json;

}

fixed code for better optimization. Iteration is now on children("[name]") so that only children with name attribute are iterated and the "has name" conditional can be deleted.

Here's one line compressed string:

function toJSON(a){if(!$(a).children().length)return $(a).val();var b=new Object;$(a).children("[name]").each(function(){e=$(this);c=e.attr("name");if(e.siblings("[name="+c+"]").length){if(!b[c])b[c]=[];b[c].push(toJSON(this))}else if(e.children("[name]").length){b[c]=toJSON(this)}else{b[c]=e.val()}});return b}