// JavaScript Document
function popWindow( url, width, height, windowName )

{

    //get center coords

    var left = (screen.width - width) / 2;

    var top = (screen.height - height) / 2;

    

    win=window.open(url, windowName, 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=' + width + ',height=' + height + ',left=' + left + ',top=' + top);

}

function popScrollingWindow(url, width, height, windowName)

{

    //get center coords

    var left = (screen.width - width) / 2;

    var top = (screen.height - height) / 2;

    

    win=window.open(url, windowName, 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0,width=' + width + ',height=' + height + ',left=' + left + ',top=' + top);

}

function openWindow(url)

{

    var rand = "_blank";

    win=window.open(url,rand,"directories=yes,location=yes,menubar=yes,scrollbars=yes,status=yes,toolbar=yes,resizable=yes");

}



function downloadFile(theFile)

{

    popWindow("download.html?theFile="+theFile, 300, 100, "downloadWindow");

}






function popGrade()

{

	popWindow('grading.php4', 350, 350, 'TripGrading');

}