x = 20;
y = 70;
function setVisible(obj)
{
	obj = document.getElementById(obj);
	obj.style.visibility = (obj.style.visibility == 'visible') ? 'hidden' : 'visible';
	

}
function placeIt(obj)
{
	obj = document.getElementById(obj);
	if (document.documentElement)
	{
		theLeft = document.documentElement.scrollLeft;
		theTop = document.documentElement.scrollTop;
	}
	else if (document.body)
	{
		theLeft = document.body.scrollLeft;
		theTop = document.body.scrollTop;
	}
	theLeft += x + (document.documentElement.clientWidth/2) - 280;
	theTop += y + 100;
	obj.style.left = theLeft + 'px' ;
	obj.style.top = theTop + 'px' ;
	setTimeout("placeIt('sig')",500);

}

function xmlhttpPost(strURL) {
        var xmlHttpReq = false;
        // Mozilla/Safari
        if (window.XMLHttpRequest) {
            xmlHttpReq = new XMLHttpRequest();
            if (xmlHttpReq.overrideMimeType) {
                xmlHttpReq.overrideMimeType('text/xml');
                // See note below about this line
            }
        // IE
        } else if (window.ActiveXObject) { // IE
            try {
                xmlHttpReq = new ActiveXObject("Msxml2.XMLHTTP");
        } catch (e) {
            try {
                xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
            }
        }
        if (!xmlHttpReq) {
            alert('ERROR AJAX:( Cannot create an XMLHTTP instance');
            return false;
        }   
        xmlHttpReq.open('GET', strURL, true);
        xmlHttpReq.setRequestHeader('Content-Type', 
            'application/x-www-form-urlencoded');        
        xmlHttpReq.onreadystatechange = function() { 
            callBackFunction(xmlHttpReq); 
        };
        xmlHttpReq.send("");
    }
            
    function callBackFunction(http_request) {
        if (http_request.readyState == 4) {
            if (http_request.status == 200) {
                var responceString = http_request.responseText;
                //TODO implement your function e.g.
                alert(responceString);
            } else {
                alert('ERROR: AJAX request status = ' + http_request.status);
            }
        }
    }
	window.onscroll = function () {
        setTimeout("placeIt('sig')",500);
    }