function ajax(queryString, div_to_return_text){
    var ajaxRequest;  // The variable that makes Ajax possible!
    
    try{
        // Opera 8.0+, Firefox, Safari
        ajaxRequest = new XMLHttpRequest();
    } catch (e){
        // Internet Explorer Browsers
        try{
            ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
        } catch (e) {
            try{
                ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e){
                // Something went wrong
                alert("Your browser broke!");
                return false;
            }
        }
    }
    // Create a function that will receive data sent from the server
    ajaxRequest.onreadystatechange = function(){
        if(ajaxRequest.readyState == 4){
            document.getElementById(div_to_return_text).innerHTML = ajaxRequest.responseText;
        }
    }
    ajaxRequest.open("GET", queryString, true);
    ajaxRequest.send(null);
}

function show_hide(box)
    {
    if(document.getElementById(box).style.display == "none")
        {
        document.getElementById(box).style.display = "block";
        }
    else
        {
        document.getElementById(box).style.display = "none";
        }

    }