function getXYcoord ( htmlElemObj ) {  // ikke til NS4, men ok i IE4+ og NS6+
    var elm = htmlElemObj;
    var rd = { x:0 ,y:0 };
    do { rd.x += parseInt( elm.offsetLeft );
        rd.y += parseInt( elm.offsetTop );
        elm = elm.offsetParent;
    } while ( elm );
    return rd
}

function showimg(url, products_id) {
	obj = document.getElementById(products_id);
	test = getXYcoord(obj);
	elm = document.getElementById('screenshotviewer');
	elm.style.display = 'block';
	
	elm.style.top = test.y + 1 + "px";
	elm.style.left = test.x + 108 + "px";
	
	elm.innerHTML = '<img src="' + url + '" style="width:250px;" />';
}

function hideimg() {
	elm = document.getElementById('screenshotviewer');
	elm.style.display = 'none';
}