function showCountry(str)
    {
    if(str=="")
    {
    document.getElementById("").innerHTML="";
    return;
    }
    if(window.XMLHttpRequest)
    {// code for IE7+, Firefox, Chrome, Opera, Safari
    xmlhttp=new XMLHttpRequest();
    }
    else
    {// code for IE6, IE5
    xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
    xmlhttp.onreadystatechange=function()
    {
    if(xmlhttp.readyState==4 && xmlhttp.status==200)
    {
    document.getElementById("department7").innerHTML=xmlhttp.responseText;
    }
    }
    xmlhttp.open("GET","finddoctor.php?q="+str,true);
    xmlhttp.send();
    }
    function showDoctors()
    {
        document.doctor.action="dr.php";
    }