(function($) {

    $.fn.allowChars = function(p) {

        return this.each
			(
				function() {

                    if (p.type == 'decimal') if (p.ychars) { p.ychars += "1234567890." } else { p.ychars = "1234567890." };
                    if (p.type == 'phone') if (p.ychars) { p.ychars += "1234567890-. ()" } else { p.ychars = "1234567890-. ()" };
                    if (p.type == 'number') if (p.ychars) { p.ychars += "1234567890" } else { p.ychars = "1234567890" };
                    
                    if (p.type == 'english') if (p.ychars) { p.ychars += "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ '" } else { p.ychars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ '" };

                    if (p.type == 'system') if (p.nchars) { p.nchars += "אבגדהוזחטיכלמנסעפצקרשתךםןףץ!@$%^&*()+=[]\\\';,{}|\":<>?~`/# " } else { p.nchars = "אבגדהוזחטיכלמנסעפצקרשתךםןףץ!@$%^&*()+=[]\\\';,{}|\":<>?~`/# " };
                    if (p.type == 'path') if (p.nchars) { p.nchars += "אבגדהוזחטיכלמנסעפצקרשתךםןףץ!@$%^&*()+=[]\\\';,{}|\"<>?~` " } else { p.nchars = "אבגדהוזחטיכלמנסעפצקרשתךםןףץ!@$%^&*()+=[]\\\';,{}|\"<>?~` " };
                    if (p.type == 'search') if (p.nchars) { p.nchars += "@#$^*()+=[]';,{}|/\":<>~`" } else { p.nchars = "@#$^*()+=[]';,{}|/\":<>~`" };
				    if (p.type == 'email') if (p.nchars) { p.nchars += "%&#$^*()+=[]';,{}|/\":<>~`אבגדהוזחטיכלמנסעפצקרשתךםןףץ" } else { p.nchars = "%&#$^*()+=[]';,{}|/\":<>~`אבגדהוזחטיכלמנסעפצקרשתךםןףץ" };

				    var ych = p.ychars;
				    var nch = p.nchars;

				    $(this).keypress
						(
							function(e) {
							    if ($.browser.msie)
							        e_charCode = e.keyCode;
							    else
							        e_charCode = e.charCode;

							    k = String.fromCharCode(e_charCode);

							    if (e_charCode > 0) {

							        if (nch) {
							            //alert(nch);
							            if (nch.indexOf(k) != -1)
							                e.preventDefault();
							        }
							        else if (ych) {
							            if (ych.indexOf(k) == -1)
							                e.preventDefault();
							        }


							        //if (e.ctrlKey && k == 'v') e.preventDefault();
							    }
							}

						);

				    $(this).bind('contextmenu', function() { return false });

				}
			);

    };

})(jQuery);