Validate numbers in JavaScript more than IsNumeric() can do

JQUERY 1.7 now include jQuery.isNumeric( value ) function which can determines whether its argument is a number

http://api.jquery.com/jQuery.isNumeric/

function isNumber(n) {   return !isNaN(parseFloat(n)) && isFinite(n); }

http://stackoverflow.com/questions/18082/validate-numbers-in-javascript-isnumeric

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