I have a link which should open in a new tab, but if the tab is already open, just switch to it.
I've tried with javascript, wnd = window.open() and than wnd.focus(), that works in Chrome 19, but not in FF 13 or IE 9.
Here's the code I've written :

<script type=text/javascript>

var loadingTableWnd;

function openOrSwitchToWindow(url){

if(loadingTableWnd == undefined)

loadingTableWnd = window.open(url,'myFrame');

else

loadingTableWnd.focus();

}

</script> 

<a href='javascript:openOrSwitchToWindow(/);' >Loading Table</a>

Any idea how can I open or switch to from every browser?

EDIT: I need to open the link in a new tab, not a stand-alone window.