This browser has the CHIME plugin installed if you can use the mouse to rotate the NaCl Model by "dragging" it with the mouse. If CHIME is not installed, you may get it at
Note: Viewing many images and uv/vis/ir spectra requires the Chime 2.0 plug-in: http://www.mdlchime.com/chime/index.asp (this link opens in a new window).

With CHIME models, you may drag the image with the left mouse button, or click on the image with the right mouse button to change the display parameters.  For example, choose Display>Ball and Stick to change to another type of display, or hold down the shift key while you "drag" across the image with the mouse to zoom in or out.

Many chemistry sites use CHIME, especially the ones listed under Molecular Modelling on the CHM100 Home page.  See for example  http://www.wellesley.edu/Chemistry/Flick/molecules/newlist.html , which is the source of the H2SO4 and NaCl models.
 
Note: Microsoft Excel worksheets are used extensively in CHM100. If your spreadsheet does not read these files, Microsoft provides a free viewer for Excel at: http://officeupdate.microsoft.com/index.htm (this link opens in a new window).