function setQuality(q, link)
{
	document.getElementById('save_quality').value = q;
}

function showQPreview()
{
	var qprev = ["one","two","three","four"];
	
	var o_qprev = window.document.getElementById('pic_qpreview');
	var o_pic_sel = window.document.getElementById('pic_sel');
	
	var qp_img, qp_size;
	
	// Create new JsHttpRequest object.
	var req = new JsHttpRequest();
	
	// Code automatically called on load finishing.
	req.onreadystatechange = function() {
		if (req.readyState == 4) {
			//new history
			if (req.responseJS.error == 'no') {
				//pic_history[current_history] = req.responseJS.name;
				//set info
				for (var i=0;i<qprev.length;i++)	{
					qp_size = window.document.getElementById('qp_size_'+qprev[i]);
					qp_size.innerHTML = Math.round(req.responseJS.qprev[i] / 1024);
				}
			}
		}
	}
	
	for (var i=0;i<qprev.length;i++)	{
		qp_img = window.document.getElementById('qp_img_'+qprev[i]);
		qp_img.src = "/?rm=qp_thumb&q="+(25*(i+1))+"&pic="+pic_history[current_history];
	}
	
	o_pic_sel.style.display = "none";
	o_qprev.style.display = "block";
	
	// Prepare request object (automatically choose GET or POST).
	req.open(null, '/index.php?rm=qprev', true);
	// Send data to backend.
	req.send( { 'file' : pic_history[current_history] } );
}

function hideQPreview()
{
	var o_qprev = window.document.getElementById('pic_qpreview');
	var o_pic_sel = window.document.getElementById('pic_sel');
	o_qprev.style.display = "none";
	o_pic_sel.style.display = "block";
}