//open / close   
function toggleinlinepopup(div_id) {

	var el = document.getElementById(div_id);
	if ( el.style.display == 'none' ) {	el.style.display = 'block';}
	else {el.style.display = 'none';}
}

//close only
function toggleinlinepopupclose(div_id) {
	var el = document.getElementById(div_id);
  el.style.display = 'none';
}


function blanket_size(popUpDivVar) {
	if (typeof window.innerWidth != 'undefined') {
		viewportheight = window.innerHeight;
	} else {
		viewportheight = document.documentElement.clientHeight;
	}
	if ((viewportheight > document.body.parentNode.scrollHeight) && (viewportheight > document.body.parentNode.clientHeight)) {
		blanket_height = viewportheight;
	} else {
		if (document.body.parentNode.clientHeight > document.body.parentNode.scrollHeight) {
			blanket_height = document.body.parentNode.clientHeight;
		} else {
			blanket_height = document.body.parentNode.scrollHeight;
		}
	}
	var blanket = document.getElementById('blanket');
	blanket.style.height = blanket_height + 'px';
	var popUpDiv = document.getElementById(popUpDivVar);
	popUpDiv_height=blanket_height/2-150;//150 is half popup's height
	popUpDiv.style.top = popUpDiv_height + 'px';
}

function window_pos(popUpDivVar) {
	if (typeof window.innerWidth != 'undefined') {
		viewportwidth = window.innerHeight;
	} else {
		viewportwidth = document.documentElement.clientHeight;
	}
	if ((viewportwidth > document.body.parentNode.scrollWidth) && (viewportwidth > document.body.parentNode.clientWidth)) {
		window_width = viewportwidth;
	} else {
		if (document.body.parentNode.clientWidth > document.body.parentNode.scrollWidth) {
			window_width = document.body.parentNode.clientWidth;
		} else {
			window_width = document.body.parentNode.scrollWidth;
		}
	}
	var popUpDiv = document.getElementById(popUpDivVar);
	window_width=window_width/2-150;//150 is half popup's width
/*	
  does not work in IE
  popUpDiv.style.left =  window_width ;
  popUpDiv.style.top =  window.innerHeight * 0.75 + 'px';*/
}

function popup(windowname) {
	//blanket_size(windowname);
	window_pos(windowname);
	//toggle('blanket');
	toggleinlinepopup(windowname);	
	
}

//haal inline popup info
function sendRequest() {
  new Ajax.Request("/favoriet/feed.php", 
    { 
    method: 'post', 
    onComplete: showResponse 
    });
  }

//toon de inlinepopup  
function showResponse(req)
  {
    var k = req.responseText;

    if (k.length > 0)
    {
      popup('popUpDiv');
      //alert("showresponse");
      $('popUpDiv').innerHTML= req.responseText;

      //als er inhoud is, begin de timer
      timer = setTimeout("closepopup()", 15000);
    }
    
  }

//close popup
function closepopup() {
  new Ajax.Request("/favoriet/endfeed.php", 
    { 
    method: 'post',
    onComplete: dummy 
    });
 
  //close
  toggleinlinepopupclose('popUpDiv')	
  clearTimeout(timer);
}

function dummy()
{
}