// JavaScript Document
function OpenCenteredWindow(theURL,winName,features, myWidth, myHeight, isCenter) { //v3.0
 	if(window.screen)if(isCenter)if(isCenter=="true"){
    	var myLeft = (screen.width-myWidth)/2;
    	var myTop = (screen.height-myHeight)/2;
    	features+=(features!='')?',':'';
    	features+=',left='+myLeft+',top='+myTop;
  	}
  	window.open(theURL,winName,features+((features!='')?',':'')+'width='+myWidth+',height='+myHeight);
}

// <a href="javascript:;" onClick="OpenCenteredWindow('/fairvuemap/','map','toolbar=no,location=no,status=no,menubar=no,scrollbars=no,resizable=no','780','480','true')">