what is the difference between target value blank,self, parent,top in HTML?

Question

what is the difference between target value blank,self, parent,top,framename in tag target attribute? i know blank is open than link in new tab self is that link open in current tab But i can't understand parent and top

Solution 1

From the specification:

_blank

The user agent should load the designated document in a new, unnamed window.

_self

The user agent should load the document in the same frame as the element that refers to this target.

_parent

The user agent should load the document into the immediate FRAMESET parent of the current frame. This value is equivalent to _self if the current frame has no parent.

_top

The user agent should load the document into the full, original window (thus canceling all other frames). This value is equivalent to _self if the current frame has no parent.

http://www.w3.org/TR/html4/types.html#type-frame-target

Solution 2

target="_blank"

Opens a new window and show the related data.

target="_self"

Opens the window in the same frame, it means existing window itself.

target="_top"

Opens the linked document in the full body of the window.

target="_parent"

Opens data in the size of parent window.

Source: http://www.w3.org/TR/html4/types.html#type-frame-target