以下JavaScript校验日文环境下的用户输入

直接调用fvallenchk函数即可,obj为要校验的对象,max_len为最大长度,该函数返回0表示长度超出,反之则通过.

function fgetdata(Obj){

wkValue = "";

wkType = Obj.type;

if (wkType == "text") {

wkValue = Obj.value;

} else if (wkType == "hidden") {

wkValue = Obj.value;

} else if (wkType == "select-one") {

SelIx = Obj.selectedIndex;

wkValue = Obj.options[SelIx].value;

} else if (wkType == "textarea") {

wkValue = Obj.value;

} else if (wkType == "password") {

wkValue = Obj.value;

}

return wkValue;

}

function fvallenchk(obj,max_len){

var chkstr,i,cnt = 0;

chkstr = "????????`??????????????????????????????????????????????????";

strValue = fgetdata(obj);

for(i=0; i

if(escape(strValue.charAt(i)).length >= 4 ){

if ( chkstr.indexOf(strValue.charAt(i))== -1){

cnt+=2;

}else{

cnt++;

}

}else{

cnt++;

}

};

if (cnt > max_len) {

return "0";

} else {

return "1";

}

}