<html> <head> <script> function getStyle() { var temp = document.getElementById("main").style.visibility; return temp; } function switchMain() { var current = getStyle(); if( current == "visible" ) { document.getElementById("main").style.visibility = "hidden"; } else { document.getElementById("main").style.visibility = "visible"; } } </script> </head> <body> <div id="main" style="visibility: visible">Hello</div> <a href="#" onclick="switchMain()">Change</a> </body> </html>