// JavaScript Document
  function checklogin()
{
    if(checkspace(document.loginfo.username.value)) {
    alert("会员名不能为空！");
	document.loginfo.username.focus();
	return false;
  }
    if(checkspace(document.loginfo.password.value)) {
    alert("密码不能为空！");
	document.loginfo.password.focus();
	return false;
  }
    if(checkspace(document.loginfo.passcode.value)){
	alert("验证码不能为空");
	document.loginfo.passcode.focus();
	return false;
	}
	
  }

function check()
{
   if(checkspace(document.searchform.searchkey.value !='请输入关键字'))  {
	alert("请输入查询关键字！");
	document.searchform.searchkey.focus();
	return false;
  }
  if(checkspace(document.searchform.searchkey.value))  {
	alert("请输入查询关键字！");
	document.searchform.searchkey.focus();
	return false;
  }
   document.searchform.submit();
}
function checkspace(checkstr) {
  var str = '';
  for(i = 0; i < checkstr.length; i++) {
    str = str + ' ';
  }
  return (str == checkstr);
}