Allow only numbers and dot character in TextBox using JavaScript

Question

I have added user drfined javascript file in my project and write a user define javasript function in that file function onlyNumbersWithDotevt     var e  event  evt  for transbrowser compatibility    var charCode  ewhich  ekeyCode    if charCode  46        return true    if charCode gt 31 ampamp charCode lt 48  charCode gt 57        return false    return truethis function works in google chrome but does not works in firefoxother javascrip runs but this fuc

Azim · Accepted Answer

Refer this code I have tested it in FireFox Version 31 and IE8 Its working finelthtml xmlns34httpwwww3org1999xhtml34gtlthead runat34server34gt    lttitlegtlttitlegt    ltscript src34JScriptjs34 type34textjavascript34gtltscriptgt    ltscript type34textjavascript34gt        function onlyNumbersWithDote                         var charCode            if ekeyCode gt 0                 charCode  ewhich  ekeyCode                        else if typeof echarCode  34undefined34                 charCode  ewhich  ekeyCode                        if charCode  46                return true            if charCode gt 31 ampamp charCode lt 48  charCode gt 57                return false            return true            ltscriptgtltheadgtltbodygt    ltform id34form134 runat34server34gt    ltdivgt        ltinput type34text34

Allow only numbers and dot character in TextBox using JavaScript

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