Below js code working good everywhere else 

$(this).val("");

 {console.log("press english charsss plz");}

  {a=a.replace(/[^a-zA-Z\s]/,"");}

Hi, I'm ui developer, and Below js code working good everywhere else FireFox browsers(nighty, beta, alpha) android os. In ios, iphones is good. http://jsfiddle.net/qhq1367/JQ928/196/ $("input.EnglishOnly").bind("keyup input past", function() { var a=$(this).val(); $(this).val(""); if (a!=a.replace(/[^a-zA-Z\s]/,"")) {console.log("press english charsss plz");} var alength=a.length; for (var i=0;i<=alength;i++) {a=a.replace(/[^a-zA-Z\s]/,"");} $(this).val(a); }); In firefox android Typing: ASDFg Restlut be: AASASDASDFASDFg http://jsfiddle.net/qhq1367/JQ928/196/ Please help me In every firefox is working good else android. Thanks alot.