function getnewsletter()
{
var errorMsg="";
var emailStr=document.getElementById("youremail").value;
if(emailStr=="" || emailStr=="Enter your e-mail")
{
errorMsg = " - your email field is empty";
}
else
{

var emailPat=/^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
var matchArray=emailStr.match(emailPat);
if (matchArray==null)
{
errorMsg = "- Your Email Address is Invalid";
}
}
if(!errorMsg)
{
return true;
}
alert(errorMsg);
return false;
}
//首页调用js
function getnewsletterindex(){
    var errorMsg="";
    var emailStr=document.getElementById("your_email").value;
    if(emailStr=="" || emailStr=="Enter your e-mail" || emailStr=="Please Enter your Email Address"){
        errorMsg = " - your email field is empty！";
    }else{ 
        var emailPat=/^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
        var matchArray=emailStr.match(emailPat);
        if (matchArray==null){
            errorMsg = "- Your Email Address is Invalid";
        }
    }
    if(!errorMsg){
//        alert('123123123');
//         document.newsletterform.action="/info/get_newsletter.php";
//         document.newsletterform.submit();
    return true;
    }else{
        alert(errorMsg);
        return false;
    }
}

function searchkeywords()
{
var errorMsg="";
if(document.getElementById("keywords123").value=="")
{
errorMsg = " - Please input the keywords";
}
if(!errorMsg)
{
return true;
}
alert(errorMsg);
return false;
}
function changeOrder1(ID)
{
var url=document.location.href;
document.location.href="/category.php?id="+ID+"&tureurl=1&orderby="+eval(document.exchangerate.orderby.selectedIndex+1);
}