capitalizeInput

capitalizeInput.js

(function($) {
    $.fn.capitalizeInput = function(){
        var content = $(this).val().toLowerCase();
        
        var pos = 0;
        var space = -1;
        var min_length = 2;
        var values = content.split("");
        
        while (-1< pos &&  pos <content.length ){
         space= content.indexOf(" ",pos);
         if (space<0){
            if ((content.length - pos)>= min_length && values[pos+1].match(/\w/)){
               values[pos] = values[pos].toUpperCase();
            }
            pos = space;
         }else{   
            if ((space - pos)>= min_length && values[pos+1].match(/\w/) ){
               values[pos] = values[pos].toUpperCase();
            }
            pos = space+1;
         }
        }
        
        $(this).val(values.join(""));
    };
    
})(jQuery);