//open window for xtra large image
function showImage(pathtoimage,iwidth) {
html = 'Larger Image '+
' '+
' '+
'Close this window
'+
'![]()
'+
' '+
'';
var width = parseInt(screen.availWidth * .9);
iwidth=iwidth+40; //10px margin
if ( width > iwidth ) {width=iwidth;}
var height = parseInt(screen.availHeight * .9);
var params = 'width='+width+',height='+height+',scrollbars=yes,resizable=yes,top=0,left=0'; //no spaces between elements
popup=window.open('','LargerImage',params);
popup.document.write(html);
popup.focus(); //in case behind main win
popup.document.close();
return false;
};