form-operations

JQuery plugin to manage operations between fields and/or html elements

usage

$('result_field_selector').operation('query_string');

OR

options = {query: 'your query'};
$('result_field_selector').operation(options);

It can be used on HTML elements other than INPUT too!

options

Option	Default	Input
query	-	Mathematical expression with jquery selectors between {} ('1 + {#my-field}')
events	['change']	array of events that trigger recalculation (event on query elements)
checkNew	false	if set to true checks for fields inserted in the DOM after initialization
timedCheck	0	check changes every specified milliseconds (n <= 0 is disabled)
fieldsDecimalSeparator	'.'	decimal separator used in the input fields
fieldsThousandSeparator	''	thousand separator used in the input fields
resultDecimalSeparator	'.'	decimal separator used in the result field
resultThousandSeparator	''	thousand separator used in the result field
decimalDigits	-1	to fix the number of decimal digits in the result input a number 0 <= n <= 20

multiple fields selector

If a selector has been used for multiple fileds ('{.myfields}' or others) it calculates all their values (prioritizing multiplications and divisions)

EXAMPLE

$('#result selector').operation('... - 1 + {.myfields} * 5 ...');

//it will become:
('... - 1 + {myfields 1 value} * {myfields 2 value} * ... * 5);

IF YOU WANT THAT TO BE A SUM

$('#result selector').operation('... - (1 + {.myfields}) * 5 ...'); //...add parenthesis!! ;)