function CheckInfo()
{
    var firstName = document.getElementById("ctl00_ContentPlaceHolder1_txtFirstName").value;
    var lastName = document.getElementById("ctl00_ContentPlaceHolder1_txtLastName").value;
    var email =document.getElementById("ctl00_ContentPlaceHolder1_txtEmail").value;
    var mobilePhone =document.getElementById("ctl00_ContentPlaceHolder1_txtMobilePhone").value;
    var workPhone =document.getElementById("ctl00_ContentPlaceHolder1_txtWorkPhone").value;
    var contact =document.getElementById("ctl00_ContentPlaceHolder1_txtContact").value;
    
    var strMsg ="";
    if(firstName=="")
    {
        strMsg +="Please input your first name.<br/>";
    }

    var matchArray = email.match(/^([a-zA-Z0-9]+[_|\_|\.]?)*[a-zA-Z0-9]+@([a-zA-Z0-9]+[_|\_|\.]?)*[a-zA-Z0-9]+\.[a-zA-Z]{2,3}$/);
    if(email =="Please review email's format." || matchArray==null)
    {
        strMsg +="Please review email's format.<br/>";
    }
   
    if(mobilePhone=="" || mobilePhone =="enter country code(use numbers only)")
    {
        strMsg +="enter country code(use numbers only)<br/>";
    } 
    if(contact=="" || contact.indexOf("please keep content of message clean")>=0)
    {
        strMsg +="Please input your comments.<br/>";
    }
    if(strMsg=="")
    {
        return true;
    }
    else
    {
        document.getElementById("divMsg").innerHTML =strMsg;
        return false;
    }
}