function openEvisionWindow(file)
{
	openCenteredWindow(file, 950, 650);	
}

function openCenteredWindow(url, width, height)
{
    var left = parseInt((screen.availWidth/2) - (width/2));
    var top = parseInt((screen.availHeight/2) - (height/2));
    var windowFeatures = "width=" + width + ",height=" + height + ",status=0,location=0,menubar=0,toolbar=0,resizable,left=" + left + ",top=" + top + "screenX=" + left + ",screenY=" + top;
    myWindow = window.open(url, "subWind", windowFeatures);
}