//Author: Shawn Renner (unless otherwise noted)
//Please do not copy without permission

function showPopup(divID)
{
    document.getElementById(divID).style.display = "block";
    /*var interval = window.setInterval("checkScroll(" + divID + ")", 500);*/
}

function hidePopup(divID)
{
    document.getElementById(divID).style.display = "none";
}

function togglePopup(divID, useVisibility)
{
    var theDiv = document.getElementById(divID);
    if(theDiv.style.display == "block") {
        if (useVisibility)
            theDiv.style.visibility = "hidden";
        else
            theDiv.style.display = "none";
    }
    else {
        if (useVisibility)
            theDiv.style.visibility = "visible";
        else
            theDiv.style.display = "block";
    }
}

function isNumberKey(evt)
{
    var charCode = '';
    if(!evt)
        evt = window.event;
    if(evt.keyCode)
        charCode = evt.keyCode;
    else
        charCode = evt.charCode;
    
    if (charCode > 31 && (charCode < 48 || charCode > 57) && (charCode != 46) && (charCode != 9))
        return false;
    return true;
}