function valContact()
{
    var ctl;
    
    ctl = document.getElementById("ctl00_txtName");
    
    if(isEmpty(ctl))
    {
        alert("Please enter name");
        ctl.focus();
        return false;
    }
    ctl = document.getElementById("ctl00_txtAddress");
    
    if(isEmpty(ctl))
    {
        alert("Please enter address");
        ctl.focus();
        return false;
    }
     ctl = document.getElementById("ctl00_txtPhone");
    
    if(isEmpty(ctl))
    {
        alert("Please enter phone number");
        ctl.focus();
        return false;
    }
      ctl = document.getElementById("ctl00_txtEmail");
    
    if(isEmpty(ctl))
    {
        alert("Please enter email");
        ctl.focus();
        return false;
    }
    if(!isEmail(ctl))
    {
         alert("Please enter valid email");
        ctl.focus();
        return false;
    }
    
    return true;
}