function clickIE() {if (document.all) {;return false;}}

function clickNS(e) {if 
(document.layers||(document.getElementById&&!document.all)) {
if (e.which==2||e.which==3) {;return false;}}}
if (document.layers) 
{document.captureEvents(Event.MOUSEDOWN);document.onmousedown=clickNS;}
else{document.onmouseup=clickNS;document.oncontextmenu=clickIE;}


function openCentered(theURL,winName,winWidth,winHeight,features) {
var w = (screen.width - winWidth)/2;
var h = (screen.height - winHeight)/2 - 30;
features = features+',width='+winWidth+',height='+winHeight+',top='+h+',left='+w;
window.open(theURL,winName,features);
}