function checkemail(){
    var email = document.getElementById("subscriptionemail").value;
    var errormsg = "";
    if(email==''){
        errormsg=errormsg+'Please enter your Email Address!\n';
        document.getElementById("subscriptionemail").style.backgroundColor = 'red';
    }
    if(email != ''){
        if (email.indexOf('@')==-1||email.indexOf('.')==-1||email.indexOf('@.')!=-1){
            errormsg=errormsg+"Please provide a valid Email Address!\n";
            document.getElementById("subscriptionemail").style.backgroundColor = 'red';
        }
    }
    if (errormsg!=""){
        alert(errormsg);
        return false;
    }else{
        return true;
    }
}