var totalrows = 3;
var totalcols = 7;

var samples  = new Array(totalrows);
var samplenames  = new Array(totalrows);
samples[0] =new Array("sarasotaspeed_logo.jpg","isatrava_logo.jpg","liquidgraphic_stationary.jpg","avensa_ad.jpg","sea_adv_brochure.jpg","fitness_web.jpg","ads_web.jpg");
samples[1] =new Array("gaiarose_logo.jpg","raymondmedia_logo.jpg","gaiarose_stationary.jpg","prodiseno_postcard.jpg","liquidgraphic_brochure.jpg","designermarble_web.jpg","judith_web.jpg");
samples[2] =new Array("permacast_logo.jpg","aquaguard_stands.jpg","isatrava_stationary.jpg","amla_ad.jpg","trust22_dvd.jpg","permacast_web.jpg","trust22_web.jpg");    
samplenames[0] =new Array("Sarasota Speed Logo","Isatrava Logo","Liquidgraphic Stationary","Avensa Ad","Sea Adventure Brochure","Fitness Website","Ads Website");
samplenames[1] =new Array("Gaiarose Logo","Raymond Media Logo","Gaiarose Stationary","Prodiseno Postcard","Liquidgraphic Brochure","Designer Marble Website","Judith Salazar Website");
samplenames[2] =new Array("Permacast Logo","Aquaguard Stands","Isatrava Stationary","Amla Ad","Trust22 DVD","Permacast Website","Trust22 Website");    

var default_sample_file  = "sarasotaspeed_logo.jpg";
var default_sample_name  = "Sarasota Speed Logo";


var current_row = 1,  current_column = 1;
var old_row, old_column;

function TC_onload() {
    // Load names to pictures
    var thumb_image;
    for (r=1;r<totalrows+1;r++)
    {
        for (c=1;c<totalcols+1;c++)
        {
            thumb_image = TC_findObject("sample_r" + r + "_c" + c);
            thumb_image.alt = samplenames[r-1][c-1];
        }
    }

    // randomize and show a sample
    current_row=Math.round(Math.random()*3+1);
    current_column=Math.round(Math.random()*6+1);
    old_row = current_row;
    old_column = current_column;
    TC_showSample(current_row, current_column);
    return true;
}

function TC_swapImageButton(r,c)
{
    var sample_id = 'sample_r'+r+'_c'+c
    var sample_roll_img = '../Images/samples_portfolio/sample_roll_r'+r+'_c'+c+'.gif'
    MM_swapImage(sample_id,'',sample_roll_img,1)
    return;
}

function TC_findObject(n)
{
    var x,d;
    d=document;
    if(!(x=d[n])&&d.all) x=d.all[n];
    if ( !x && document.getElementById ) 
        x=d.getElementById(n);
    return x;
}
function TC_showSample(r,c)
{
    var old_row = current_row;
    var old_column = current_column;
    current_row = r;
    current_column = c;
    var image = TC_findObject("sample_image");
    var sample_text = TC_findObject("sample_image_text");
    var sample_file = default_sample_file;
    var sample_name = default_sample_name;
    try
    {
        sample_file = samples[r-1][c-1];
        sample_name = samplenames[r-1][c-1];
    }
    catch(e)
    {
        // Catch Bad Initialization Routines depending on browser
        current_row = 1;
        current_column = 1;
        old_row = 1;
        old_column =1;
        sample_file = default_sample_file;
        sample_name = default_sample_name;
    }
    var sample_img_path = '../Images/samples_portfolio/' + sample_file;   
    image.src = sample_img_path;
    image.alt = sample_name;
    image.title = sample_name;
    sample_text.innerHTML = sample_name;
    return false;
}