/**
* Currency (http://www.reality-xp.com)
* A jQuery plugin for converting currencies
*
* Version 1.0
* August 27th, 2008
*
* Copyright (c) 2008 Reality XP
* Dual licensed under the MIT and GPL licenses.
* http://www.opensource.org/licenses/mit-license.php
* http://www.opensource.org/licenses/gpl-license.php
*
**/

//on page load call convert
$(document).ready(function(){
	$('.currency').each(function(i,domEle){
		$(domEle).convertCurrency(false);
		return true;
	})
});

;(function(){

	var $$;
	
	$$ = jQuery.fn.convertCurrency = function(currencycode) {
		
		var $this = $(this)
			if ($this.attr('rel')) {
	
			var prms = $this.attr('rel').split(':'); /*"USD:EUR:€"*/
			var fAmnt = parseFloat($this.text());
			var cCode = currencycode ? ' '+prms[1] : '';
			// check if the exchange rate has been retrieved today
			var cookieVal = $.cookie('currencyrate'+prms[0]+prms[1]);
			if (cookieVal != null)
			{
				// convert the amount to the required currency
				frmtCurrency($this,prms[2],fAmnt*parseFloat(cookieVal),cCode,prms[1]);
			} else {
		
			try {
					reqAjax = $.ajax({
						type: "POST",
						url: '/scripts/currency-ajax.php',
						dataType: "json",
						data: "action=rate" + "&currfrom=" + prms[0] + "&currto=" + prms[1],
						success: function(json) {
							switch (json.errcode) {
								case 'ERR-100':
									$.cookie('currencyrate'+prms[0]+prms[1],json.result,{expires: 6, path: '/' });
									frmtCurrency($this,prms[2],fAmnt*parseFloat(json.result),cCode,prms[1]);
								break;
								case 'ERR-200':
								break;
								default:
								break;
							}
						},
						error: function(xhr, msg, ex) {
							reqAjax = null;
						}
					})
				} catch(e) {
				}
			}
		}
		// Executes for each currency on the page
		return this;
		
		function frmtCurrency(ele,symb,val,code,cls) {
		
		// round the currency to the nearest .05
		val *= 2.0;
		val = val.toFixed(1) / 2.0;
		val = val.toFixed(2);
		// build the text in the form: '$' '12.35' 'USD'
		ele.text(symb+parseInt(val)+code );
		// add the currency code to the element class.
		ele.addClass(cls);
		};
	
	};

})();