waitForPageToLoad : This command will make the script to WAIT till the page loads.Syntax is waitForPageToLoad(TIMEOUT); Timed out is the maximum TIME the script will wait for the page to load.
waitForAlert : This command will wait for the alert message to appear
waitForTable: This command will wait for the Web table to completely load in the page
waitForTitle: This command will for the page Title to appear on the browser.
Other waitFor COMMANDS : Selenium has several other wait command like waitForText,waitForPopup and so on. These commands are generically called Synchronization commands