// JavaScript Document
function checkdata1() {
if( isNumberString(addform1.username.value,"1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_@.-")!=1 || addform1.username.value.length<4 || addform1.username.value.length>50) {
alert("\出错，下面是产生错误的可能原因：\n\n·用户名必须是4-50位的数字、英文或下划线")
return false;
}
if( isNumberString(addform1.password.value,"1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")!=1 || addform1.password.value.length<4 || addform1.password.value.length>50) {
alert("\出错，下面是产生错误的可能原因：\n\n·密码必须是4-50位的数字、英文组成")
return false;
}
return true;
}
function isNumberString (InString,RefString)
{
if(InString.length==0) return (false);
for (Count=0; Count < InString.length; Count++)  {
	TempChar= InString.substring (Count, Count+1);
	if (RefString.indexOf (TempChar, 0)==-1)  
	return (false);
}
return (true);
}
//