var msgWindow = null;

function neww(target,title,width,height,parameters)
{
var left = Math.floor((screen.availWidth - width) / 2);
var top = Math.floor((screen.availHeight - height) / 2);

msgWindow=window.open(target,title,"toolbar=no,width=" + width + ",height=" + height +" ,directories=no,status=no,resizable=yes,scrollbars=yes,menubar=no,left="+left+",top="+top);
}

function win_help(target,title,width,height,parameters)
{
var left = Math.floor((screen.availWidth - width) / 2);
var top = Math.floor((screen.availHeight - height) / 2);

hlpWindow=window.open(target,title,"toolbar=no,width=" + width + ",height=" + height +" ,directories=no,status=no,resizable=yes,scrollbars=yes,menubar=no,left="+left+",top="+top);
}

function win_settings(target,title,width,height,parameters)
{
var left = Math.floor((screen.availWidth - width) / 2);
var top = Math.floor((screen.availHeight - height) / 2);

setsWindow=window.open(target,title,"toolbar=no,width=" + width + ",height=" + height +" ,directories=no,status=no,resizable=yes,scrollbars=yes,menubar=no,left="+left+",top="+top);
}