function opwindow(destURL, winwidth, winheight){
    var winopts =
	    "toolbar=no,location=no,directories=no,status=no"
	    + ",menubar=no,resizable=0,scrollbars=1"
	    + ",copyhistory=no";
    var cadena='';

	opts = winopts + ",width=" + winwidth + ",height=" + winheight;
	template = destURL;
	if(document.layers){
	webcast = window.open(template, "CtrlWindow", opts);
	}else{
	webcast = window.open(template, "CtrlWindow", opts);
	webcast.focus();
	}
}

function copyToClipboard(s)
{
	if( window.clipboardData && clipboardData.setData )
	{
		clipboardData.setData("Text", s);
	}
	else
	{
		// You have to sign the code to enable this or allow the action in about:config by changing user_pref("signed.applets.codebase_principal_support", true);
		netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect');

		var clip = Components.classes['@mozilla.org/widget/clipboard;[[[[1]]]]'].createInstance(Components.interfaces.nsIClipboard);
	   if (!clip) return;
	   
	   // create a transferable
	   var trans = Components.classes['@mozilla.org/widget/transferable;[[[[1]]]]'].createInstance(Components.interfaces.nsITransferable);
	   if (!trans) return;
	   
	   // specify the data we wish to handle. Plaintext in this case.
	   trans.addDataFlavor('text/unicode');
	   
	   // To get the data from the transferable we need two new objects
	   var str = new Object();
	   var len = new Object();
	   
	   var str = Components.classes["@mozilla.org/supports-string;[[[[1]]]]"].createInstance(Components.interfaces.nsISupportsString);
	   
	   var copytext=meintext;
	   
	   str.data=copytext;
	   
	   trans.setTransferData("text/unicode",str,copytext.length*[[[[2]]]]);
	   
	   var clipid=Components.interfaces.nsIClipboard;
	   
	   if (!clip) return false;
	   
	   clip.setData(trans,null,clipid.kGlobalClipboard);	   
	}
}