function noRightClick() {
if (event.button==2) {
alert('You can only left click on this page.')
}
}
document.onmousedown=noRightClick
function banner1(){
document.getElementById('ban2').innerHTML="<table border=0 nowrap cellpadding=0 cellspacing=0 align=center><tr><td height=1 width=1><IFRAME width=1080 height=110 frameborder=0 src='http://www.grammar-monster.com/scripts/ads.htm'></IFRAME></td></tr></table>";
document.getElementById('ban3').innerHTML="";
document.getElementById('ban4').innerHTML="<table border=0><tr><td valign=top><img src='http://www.grammar-monster.com/images/quick_search.gif' border=0></td><td><font color=white><b>Use our &quot;Quick Search&quot; window below<br>to find what you're after instantly:</b></font><br><div align=left valign=top><table border=0 nowrap cellpadding=0 cellspacing=0><tr><td height=1 width=1><IFRAME width=380 height=205 frameborder=0 src='http://www.grammar-monster.com/scripts/bottom_scroll.htm' allowtransparency='true'></IFRAME></td></tr></table></div></td></tr></table>";}

function showads(){
document.getElementById('ban2').innerHTML="<table border=0 nowrap cellpadding=0 cellspacing=0 align=center><tr><td height=1 width=1><IFRAME width=1080 height=110 frameborder=0 src='http://www.grammar-monster.com/scripts/ads.htm'></IFRAME></td></tr></table>";}