Sort by Price ("From low to high" and "From high to low")

[Andy_91]

Please tell me how I can do so that sorting instead of the "Product Price +/-" was "From low to high" and "From high to low" ??

For example: http://www.amazon.com/s/ref=sr_il_ti_software?fst=as%3Aoff&rh=n%3A229534%2Cn%3A!44262011%2Cn%3A229643%2Cn%3A229535&bbn=229643&ie=UTF8&qid=1416753114&lo=software