var bigpicWin=null;
function showbigimage(url,picwidth,picheight,description)
{if(!bigpicWin||bigpicWin.closed)
{usrwidth=screen.width;usrheight=screen.height;
winwidth=picwidth;winheight=picheight;
var X=(usrwidth-winwidth)/2;
var Y=(usrheight-winheight)/2;
properties="toolbar=no,location=no,directories=no,status=no,scrollbars=no,resizable=no,copyhistory=no,width="+winwidth+",height="+winheight+",";
checkie=navigator.appName.indexOf("icrosoft");
if(checkie==-1){properties=properties+"screenX="+X+",screenY="+Y;}
else{properties=properties+"left="+X+",top="+Y;}
bigpicWin=window.open('','bigpicWin',properties);
bigpicWin.document.open();
bigpicWin.document.write('');
bigpicWin.document.write(''+description+'');
bigpicWin.document.write('');
bigpicWin.document.write('');
bigpicWin.document.write('
');
bigpicWin.document.write('');
bigpicWin.document.write('');
bigpicWin.document.close()
bigpicWin.focus();}
else{bigpicWin.focus();}
}