function checkKeyword(formElement){
var str = formElement.value;
var str_length = str.length;
var code, scode, count, codeList, errorM;
for (var i = 0; i < str_length; i++) {
count = 0;
code = str.charCodeAt(i);
code16 = code.toString(16);
code = code.toString(16);
code = figure_change(code, 4, "0");
if(!(0x20 <= "0x"+code && 0x7e >= "0x"+code)){
if(code.charAt(0) == "0" || ( code.charAt(0) >= "2" && code.charAt(0) <= "9" ) || code.charAt(0) == "f"){
scode = code.substring(1,4);
if(eval("u"+code.charAt(0)+"a").indexOf(":"+scode) == -1){count++; return false;}
}else{return false;}
}
}
return true;
}

function figure_change(string,figure,letter){
var string = String(string);
var letter = String(letter);
var figure = Number(figure) - string.length;
var return_string = "";
for(var figure_i=0; figure_i<figure; figure_i++){return_string += letter;if(return_string.length > figure){return_string = return_string.slice(0,figure);break;}}
return_string += string;
return return_string;
}