function openContactUs(contactPage,contactTitle,winH,winW){
var tmpHeight2 = (screen.height/2)-(winH/2);
var tmpWidth2 = (screen.width/2)-(winW/2);
var winTop = "top="+tmpHeight2+"px,";
var winLeft = "left="+tmpWidth2+"px";
var winHeight = "height="+winH+"px,";
var winWidth = "width="+winW+"px,";
window.open(contactPage,contactTitle,winHeight+winWidth+winTop+winLeft,'toolbar=no','menubar=no','scrollbars=no','resizable=no',
'location=no','directories=no','status=yes');
}