//
// Common routines used on all/most pages
//
var bg; // global variable...for more efficient display of background for popon
function setup( )
{
    bg = new Image( );
    bg.src = "./images/bg_hightech.jpg";
}

// functions for swapping images when moused over and out
function MouseOver( image, changeTo )
{
    image.SAVE_IMAGE = image.src;
    image.src = changeTo;
}
function MouseOut( image )
{
    image.src = image.SAVE_IMAGE;
}

// function to show a popon (better than a popup)
function popOn( which )
{
    var dv;
    for ( var dnum = 0; dnum < 999999; ++dnum )
    {
        dv = document.getElementById("POP" + dnum);
        if ( dv == null ) break;
        dv.style.display = "none";
    }
    document.getElementById("POP" + which).style.display = "block";
}
// function to show a popon where the source for it is in an IFRAME
function popDivFrom( dv )
{
    document.getElementById("POP0").innerHTML = dv.innerHTML; // copy full contents
    popOn(0); // then show it
}