var counter = 0;

function right(e) {
	if (navigator.appName == 'Netscape' && 
		(e.which == 3 || e.which == 2))
		return false;
	else if (navigator.appName == 'Microsoft Internet Explorer' && 
		(event.button == 2 || event.button == 3)) {
		alert("If you are interested in any of these strips, please contact us.  Thank you.");
		return false;
	}
	return true;
}

document.onmousedown=right;
document.onmouseup=right;
if (document.layers) window.captureEvents(Event.MOUSEDOWN);
if (document.layers) window.captureEvents(Event.MOUSEUP);
window.onmousedown=right;
window.onmouseup=right;


if (document.images) {
        strip1 = new Image();
        strip1.src = "images/strips/basketball_fin.jpg";				//humor

        strip2 = new Image();
        strip2.src = "images/strips/honesty.jpg";			//humor

        strip3 = new Image();
        strip3.src = "images/strips/swing_aw.jpg";			//humor

        strip4 = new Image();
        strip4.src = "images/strips/beanie_aw.jpg";				//humor

        strip5 = new Image();
        strip5.src = "images/strips/rosie_incident_fin.jpg";			//humor

        strip6 = new Image();
        strip6.src = "images/strips/cocktail_waitress.jpg";				//anti-asian

        strip7 = new Image();
        strip7.src = "images/strips/white_xmas.jpg";				//humor

        strip8 = new Image();
        strip8.src = "images/strips/dave_cave.jpg";				//humor

        strip9 = new Image();
        strip9.src = "images/strips/panda_garden.jpg";			//humor

        strip10 = new Image();
        strip10.src = "images/strips/spiked_hair_jw.jpg";			//anti-asian

        strip11 = new Image();
        strip11.src = "images/strips/screwed_shaded_fin.jpg";			//humor

        strip12 = new Image();
        strip12.src = "images/strips/genie_fin.jpg";			//humor

        strip13 = new Image();
        strip13.src = "images/strips/soda_can.jpg";				//humor

        strip14 = new Image();
        strip14.src = "images/strips/getting_good.jpg";			//humor

        strip15 = new Image();
        strip15.src = "images/strips/ps3.jpg";			//humor

        strip16 = new Image();
        strip16.src = "images/strips/william_hung.jpg";			//humor

        strip17 = new Image();
        strip17.src = "images/strips/bad_driving_fin.jpg";				//humor

        strip18 = new Image();
        strip18.src = "images/strips/self_loathing_fin.jpg";			//humor

        strip19 = new Image();
        strip19.src = "images/strips/grocery_finished.jpg";			//anti-asian

        strip20 = new Image();
        strip20.src = "images/strips/idol2_fin.jpg";		//humor

        strip21 = new Image();
        strip21.src = "images/strips/breakup_fin_aw.jpg";		//humor

        strip22 = new Image();
        strip22.src = "images/strips/battlestar.jpg";			//humor

        strip23 = new Image();
        strip23.src = "images/strips/transformers.jpg";				//other

        strip24 = new Image();
        strip24.src = "images/strips/heroes.jpg";				//other

        strip25 = new Image();
        strip25.src = "images/strips/abe_lincoln.jpg";				//other

        strip26 = new Image();
        strip26.src = "images/strips/grudge.jpg";			//humor

        strip27 = new Image();
        strip27.src = "images/strips/girlfriend_stock.jpg";				//humor

        strip28 = new Image();
        strip28.src = "images/strips/blondie_white_fin.jpg";			//anti-asian

        strip29 = new Image();
        strip29.src = "images/strips/liu_xiang.jpg";			//humor

        strip30 = new Image();
        strip30.src = "images/strips/snickers.jpg";				//humor

        strip31 = new Image();
        strip31.src = "images/strips/superman_kumar.jpg";		//anti-asian

        strip32 = new Image();
        strip32.src = "images/strips/chinabear_fin.jpg";				//humor (later A3)

        strip33 = new Image();
        strip33.src = "images/strips/brad_pitt.jpg";		//humor

	  //exclude from cyclable images
        strip34 = new Image();
        strip34.src = "images/strips/buy_our_book.jpg";			//humor

}

function imgOn(img, direction) {
    counter++;
    var book_ad_img_num = 34;
    var imgNumPreAd = 0;
    if (direction == 'prev') {
	imgNumPreAd = img + 1;
    } else {
	imgNumPreAd = img - 1;
    }

    if (img == 34) {
	img = 1;
    } else if (img == 0) {
	img = 33;
    }

  if (document.images) {

    if (counter == 10) {
	  document.expand.src = eval("strip" + book_ad_img_num + ".src");
	  document.forms['pageNumberForm'].pageNum.value = imgNumPreAd;

	  counter = 0;
    } else {

	  document.expand.src = eval("strip" + img + ".src");
	  document.forms['pageNumberForm'].pageNum.value = img;
    }
  }
}


function resetPageNum(num) {
	document.forms['pageNumberForm'].pageNum.value = num;
}

function loadRandomImg() {
	var totalImgs = 34;
	var rndNum = Math.floor(Math.random() * totalImgs);

	if (rndNum == 0) {
		rndNum = 1;
	}	

	document.forms['pageNumberForm'].pageNum.value = rndNum;
	document.expand.src = eval("strip" + rndNum + ".src");

}