function ShowImg(sImgPath, width, height){
var scroll = 'no';
var top=0, left=0;
if(width > screen.width-10 || height > screen.height-28) scroll = 'yes';
if(height < screen.height-28) top = Math.floor((screen.height - height)/2-14);
if(width < screen.width-10) left = Math.floor((screen.width - width)/2);
width = Math.min(width, screen.width-10); height = Math.min(height, screen.height-28); 
window.open(sImgPath, '','scrollbars='+scroll+',resizable=yes,width='+width+',height='+height+',left='+left+',top='+top);
}