var outputDivId = 'content_posted';
var outputProgress = 'progress';

function ajax_content_onload_get(url, pars, divId, divProgress)
{
    outputDivId = divId;
    outputProgress = divProgress;
 
    document.getElementById(outputDivId).innerHTML = '';
    document.getElementById(outputProgress).style.display = '';
    var myAjax = new Ajax.Request(url, {
                                        method: 'get',
                                        parameters: pars,
                                        onComplete: ajax_content_complete
                                        });
    return false;
}
 
function ajax_content_complete(RequestText)
{
    document.getElementById(outputProgress).style.display = 'none';
    document.getElementById(outputDivId).innerHTML = RequestText.responseText;
}
 
function ajax_content_clear()
{
    // 表示してるデータをクリア
    document.getElementById(outputDivId).innerHTML = '';
}