function larger_tube(tube) {
//URL='http://www.path.uiowa.edu/path_handbook/gifs/tubes/lg/'+tube;
URL='/path_handbook/gifs/tubes/lg/'+tube;
wd =350;
ht = 350;
//alert('openWin1 - '+URL);
// this is comment line in javascript
aWindow=window.open('','_New', 'resizable,width='+wd+',height='+ht+',menubar=no,left=0,top=0');
// focus() brings the window to the front
aWindow.document.write('Media
');
aWindow.document.close()
aWindow.focus();
}