I tried to rename the Magento installed folder but it not load properly. Before It store in "demo" folder. At that time it was loaded nicely. I renamed the folder name from that time it shows only text while browsing the website. I have already changed the permission of "var" and "media" folder.
How can I make the website visible with templates.
change the base url from backend or from database in core_config_data table rename it with your renamed folder.
if you change root folder name than this must be updated manually than only all things will work correctly.
change base url in core_config_data table
and don't forgot to add "/" at the end. to load site properly with stylesheet
for example: localhost/[your_newfolder_name]/
or
http://[websitename]/[yourfolder]/