How to select an element with spaces in the class name in mootools

How to select an element with spaces in the class name in mootools

References

Reference NO 1

http://stackoverflow.com/questions/15195174/how-to-select-an-element-with-spaces-in-the-class-name-in-mootools

Reference NO 2

http://mootools.net/docs/core125/core/Utilities/Selectors

Reference NO 3

http://www.packtpub.com/article/selecting-dom-elements-using-mootools-1.2-part1

Reference NO 4

http://ryanflorence.com/mootools-for-beginners-part-4-selecting-and-manipulating-dom-elements/

Reference NO 5

http://jqueryvsmootools.com/

Reference NO 6

http://mootools.floor.ch/docs/formcheck/

Reference NO 7

http://docs.joomla.org/J1.5:Ajax_using_MooTools

Reference NO 8

http://davidwalsh.name/simple-mootools-accordion