var myImage,features;
        var mywin = 0;
function openWindow(url,web) {      
        myImage = new Image();
        myImage.src = url;
        

if(web=='web') {
                features = "locationbar=no,location=yes,toolbar=yes,directories=no,menubar=yes,resizable=yes,scrollbars=yes,status=no,personalbar=no,left=0,top=0" ;
        }
        else {
                features = "locationbar=no,location=no,toolbar=no,directories=no,menubar=no,resizable=yes,scrollbars=yes,status=no,personalbar=no,left=0,top=0" ;
        }
        if(mywin==0||mywin.closed) {
		if(web=='web') {
		mywin = window.open( url, 'webwin', features );}
		else {
                mywin = window.open( url, 'imagewin', features );}
        }
        else {
                mywin.location.href = url;
                mywin.focus();
        }
}