XPath and How to use it in chrome

//input[@id="searchinput"]

//input[@id="searchinput"][@name="search"]  %two must be satisfies

//input[starts-with(@id,"search")]  %id that prefix with search

//input[substring(@id,2)=='earchInput']

//input[substring(@id,2,5)=='earch']

//title[text()='hello']  %innertext is hello

//title[normalize-space(.)='hello']  %innertext is hello, . means text

 http://msdn.microsoft.com/en-us/library/ms256063(v=vs.110).aspx

//input[contains(@id, 'hello')]  %id contains hello

//input[@id= 'hello']/following-sibling::select 

Select all <select> sibiling after <input id="hello">

following-sibling (XPath Axes) - Selects all siblings after the current node

For more see here http://www.w3schools.com/xpath/xpath_axes.asp

To use XPath in Chrome
Click F12 to show the developer window
and click the following icon

to make the console open

Then type $x("your xpath here")  in the console to test the xpath