function showprev(sUrl)
{
 //alert("show X:" + window.event.x + '  Y:' + window.event.y);

 /*document.getElementById('previewcontainer').style.position = 'relative';*/

/* document.getElementById('previewcontainer').style.display = 'block';*/
 document.getElementById('previewcontainer').style.color = 'red';

 document.getElementById('previewcontainer').style.top = window.event.y + 5;
 document.getElementById('previewcontainer').style.left = window.event.x + 5;

 document.getElementById('previewcontainer').innerHTML = '<img src=' + sUrl + ' width=150 />';

// document.getElementById('previewcontainer').style.top = window.event.y;
// document.getElementById('previewcontainer').style.left = window.event.x;

 // z-index: 2; visibility: hidden; position: absolute; top: -50; left:-50;
}

function hideprev()
{
	document.getElementById('previewcontainer').innerHTML = '';
 //document.getElementById('previewcontainer').style.visible = 'none';
 //alert("hide");
}