function OpenImage(imageName,imageWidth,imageHeight,alt,posLeft,posTop)
{
newWindow = window.open("","newWindow","width="+imageWidth+",height="+imageHeight+",scrollbars=no,left="+posLeft+",top="+posTop);
newWindow.document.open();
newWindow.document.write(''+alt+'');
newWindow.document.write('![\"'+alt+'\"](\"'+imageName+'\")
');
newWindow.document.write('');
newWindow.document.close();
newWindow.focus();
}