In Sharepoint, if you want to hide the quicklaunch bar, then put the page in Edit mode and add a content editor webpart. Click " modify this webpart" from drop down of webpart and select the Source editor and paste the following lines

This code will hide the quick launch from the page . (Make the Content Editor webpart hidden.)

Dear Readers,
I have created this blog http://maksharepoint.blogspot.com/ to share my sharepoint development experience with you. Presently, i am working as a software engineer (Sharepoint) and my job role includes complete customization of the OOB features of the sharepoint.