// JavaScript Document
var ln={};

ln.change_currency = function(have, want, amt_have, dest){//(unit have, unit want , amount to cahnge, result)
	ln.unit_have = $('#'+have).val();
	ln.unit_want = $('#'+want).val();
	ln.amount_have = $('#'+amt_have).val();	

	ln.amount_have = ln.amount_have.replace(/^\s*|\s*$/g,'');
	if(ln.unit_have == ln.unit_want){//if changing unit = wantting unit
		$('#'+dest).val(ln.amount_have);
		return true;
	}
	
	ln.data = 'go=Convert'+'&amt='+ln.amount_have+'&from='+ln.unit_have+'&to='+ln.unit_want;
	
	$.ajax({
		type: "GET",
		async: true,
		cache: false,
		data: ln.data,
		url: "gadget/calc/change_currency.php", 
		dataType: "text",
		beforeSend: function(){
			$('.left_right_btn').children().toggle();
		},
		success:function(text){
			if(text != ''){
				$('#'+dest).val(text);	
			}
			$('.left_right_btn').children().toggle();
			return true;
		}
	});
}

$(function(){
	$('img.btn_to_left').click(function(){
		ln.change_currency('cur_i_want', 'cur_i_have', 'amount_want', 'amount_have');
	});
	
	$('img.btn_to_right').click(function(){
		ln.change_currency('cur_i_have', 'cur_i_want', 'amount_have', 'amount_want')
	});
});