- Prototype Tutorial
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Prototype - Event pointerY() Method
This method returns the absolute vertical position for a mouse event.
Syntax
Event.pointerY(event);
Return Value
Returns the absolute vertical position for a mouse event.
Example
Try this example by clicking at different places.
<html> <head> <title>Prototype examples</title> <script type = "text/javascript" src = "/javascript/prototype.js"></script> <script> // Register event 'click' and associated call back. Event.observe(document, 'click', respondToClick); // Callback function to handle the event. function respondToClick(event) { var x_axis = Event.pointerY(event); alert("Vertical position : " + x_axis); } </script> </head> <body> <p id = "note">Click anywhere to see the result.</p> <p id = "para1">This is paragraph 1</p> <p id = "para2">This is paragraph 2</p> <div id = "division">This is divsion.</div> </body> </html>
Output
prototype_event_handling.htm
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