Blogger Plug n Play - jQuery Tools and Widgets

We can Disable some characters from being written in a text field by using below functions

DEMO

with JQuery


 $("input").keypress( function(e)
{ var chr = String.fromCharCode(e.which);
 if ("12345NOABC".indexOf(chr) < 0)
 return false;
 }); 


without JQuery 


 document.getElementById("foo").onkeypress = function(e)
 { var chr = String.fromCharCode(e.which);
 if ("12345NOABC".indexOf(chr) < 0)
 return false;
};

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