function FormCheck() { 
if (trim(document.form2.name.value) =="") 
{ 
alert("请输入您的姓名！"); 
document.form2.name.focus(); 
return (false); 
}
if (trim(document.form2.password.value) =="") 
{
alert("请填写您的密码！");
document.form2.password.focus();
return false; 
}
var filter=/^\s*[A-Za-z0-9]{6,20}\s*$/;
if (!filter.test(document.form2.password.value)) { 
alert("密码填写不正确,请重新填写！可使用的字符为（A-Z a-z 0-9 ）长度不小于6个字符，不超过20个字符，注意不要使用空格。"); 
document.form2.password.focus();
document.form2.password.select();
return false; 
}
if (trim(document.form2.userpass.value) =="") 
{
alert("请填写您的确认密码！");
document.form2.userpass.focus();
document.form2.userpass.select();
return false; 
}

if (document.form2.userpass.value!=document.form2.password.value ){
alert("两次填写的密码不一致，请重新填写！"); 
document.form2.password.focus();
document.form2.password.select();
return false; 
} 

if (trim(document.form2.tel.value) =="") 
{
alert("请填写您的电话号码！");
document.form2.tel.focus();
return false; 
}


if (trim(document.form2.Email.value) =="")
{
alert("请输入您的电子邮件地址！");
document.form2.Email.focus();
document.form2.Email.select();
return false;
}
var str1 = document.form2.Email.value
if(str1.indexOf("@") == -1 || str1.indexOf(".") == -1){ 
alert("E-mail格式不正确,请重新填写！"); 
document.form2.Email.focus();
document.form2.Email.select();
return false; 
} 

document.form2.submit()
}

function userCheck() { 
if (trim(document.form33.tel.value) =="") 
{
alert("请填写您的电话号码！");
document.form33.tel.focus();
return false; 
}


if (trim(document.form33.Email.value) =="")
{
alert("请输入您的电子邮件地址！");
document.form33.Email.focus();
document.form33.Email.select();
return false;
}
var str1 = document.form33.Email.value
if(str1.indexOf("@") == -1 || str1.indexOf(".") == -1){ 
alert("E-mail格式不正确,请重新填写！"); 
document.form33.Email.focus();
document.form33.Email.select();
return false; 
} 


document.form33.submit()
}

function trim(inputString) {
	   
              if (typeof inputString != "string") { return inputString; }
              var retValue = inputString;
              var ch = retValue.substring(0, 1);
              while (ch == " ") { 
	          //检查字符串开始部分的空格
                  retValue = retValue.substring(1, retValue.length);
                  ch = retValue.substring(0, 1);
              }
              ch = retValue.substring(retValue.length-1, retValue.length);
              while (ch == " ") {
                 //检查字符串结束部分的空格
                 retValue = retValue.substring(0, retValue.length-1);
                 ch = retValue.substring(retValue.length-1, retValue.length);
              }
              while (retValue.indexOf("  ") != -1) { 
	         //将文字中间多个相连的空格变为一个空格
                 retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length); 
              }
              return retValue;
           }