var finalArraySize=4;var imageNums = new Array();var finalNums = new Array(finalArraySize);var randomNums = new Array(finalArraySize);var cookieNameArray = 'previousSettings';var cookieStringArray;var cookieNameDiffPic = 'differentPic';var cookieNameWrongPic = 'wrongPic';var cookieStringDiffPic;var cookieStringWrongPic;var differentChoices = 22;var differentPic;var wrongPic;function arrayToCookie(settingsCookieName, cookieString){var expDate = new Date();fixCookieDate(expDate);expDate.setTime(expDate.getTime() + (60 * 60 * 1000));setCookie(settingsCookieName, cookieString, expDate, "");}function cookieToArray(){var tempCookie = getCookie(cookieNameArray);if(tempCookie && tempCookie != 0){randomNums = tempCookie.split("#");setImages();}else{startOver();}}function cookieToPic(){var tempCookie = getCookie(cookieNameDiffPic);if(tempCookie && tempCookie != 0){differentPic = tempCookie.split("#");}}function cookieToWrongPic(){var tempCookie = getCookie(cookieNameWrongPic);if(tempCookie && tempCookie != 0){wrongPic = tempCookie.split("#");document.pic.src="pics/" + wrongPic + ".gif";}}function fixCookieDate(date){var base = new Date(0);var skew = base.getTime();if(skew > 0)date.setTime(date.getTime() - skew);}function getCookie(name) {var arg = name + "=";var alen = arg.length;var clen = document.cookie.length;var i = 0;while(i < clen) {var j = i + alen;if(document.cookie.substring(i, j) == arg)return getCookieVal (j);i = document.cookie.indexOf(" ", i) + 1;if(i == 0) break;}return null;}function getCookieVal(offset){var endstr = document.cookie.indexOf (";", offset);if(endstr == -1)endstr = document.cookie.length;return unescape(document.cookie.substring(offset, endstr));}function getImages(){loadArray();setDifferent();getRandomWrongs();randomizeImages();}function getRandomWrongs(){for (var i=0; i<finalArraySize-1; i++){var index = (Math.round(Math.random() * 10000) % imageNums.length);finalNums[i] = "" + picName + "_" + imageNums[index];for (var j=index; j<imageNums.length-1;j++){imageNums[j]=imageNums[j+1];}imageNums.length--;}finalNums[finalArraySize-1] = differentPic;}function goTo0(){if (randomNums[0] == differentPic){cookieStringArray = 0;cookieStringDiffPic = 0;arrayToCookie(cookieNameArray, cookieStringArray);window.location.replace("correct_" + picName + ".htm");}else {cookieStringArray = randomNums.join("#");cookieStringDiffPic = differentPic;cookieStringWrongPic = randomNums[0];arrayToCookie(cookieNameArray, cookieStringArray);arrayToCookie(cookieNameDiffPic, cookieStringDiffPic);arrayToCookie(cookieNameWrongPic, cookieStringWrongPic);window.location.replace("tryagain2_" + picName + ".htm");}}function goTo1(){if (randomNums[1] == differentPic){cookieStringArray = 0;cookieStringDiffPic = 0;arrayToCookie(cookieNameArray, cookieStringArray);window.location.replace("correct_" + picName + ".htm");}else {cookieStringArray = randomNums.join("#");cookieStringDiffPic = differentPic;cookieStringWrongPic = randomNums[1];arrayToCookie(cookieNameArray, cookieStringArray);arrayToCookie(cookieNameDiffPic, cookieStringDiffPic);arrayToCookie(cookieNameWrongPic, cookieStringWrongPic);window.location.replace("tryagain2_" + picName + ".htm");}}function goTo2(){if (randomNums[2] == differentPic){cookieStringArray = 0;cookieStringDiffPic = 0;arrayToCookie(cookieNameArray, cookieStringArray);window.location.replace("correct_" + picName + ".htm");}else {cookieStringArray = randomNums.join("#");cookieStringDiffPic = differentPic;cookieStringWrongPic = randomNums[2];arrayToCookie(cookieNameArray, cookieStringArray);arrayToCookie(cookieNameDiffPic, cookieStringDiffPic);arrayToCookie(cookieNameWrongPic, cookieStringWrongPic);window.location.replace("tryagain2_" + picName + ".htm");}}function goTo3(){if (randomNums[3] == differentPic){cookieStringArray = 0;cookieStringDiffPic = 0;arrayToCookie(cookieNameArray, cookieStringArray);window.location.replace("correct_" + picName + ".htm");}else {cookieStringArray = randomNums.join("#");cookieStringDiffPic = differentPic;cookieStringWrongPic = randomNums[3];arrayToCookie(cookieNameArray, cookieStringArray);arrayToCookie(cookieNameDiffPic, cookieStringDiffPic);arrayToCookie(cookieNameWrongPic, cookieStringWrongPic);window.location.replace("tryagain2_" + picName + ".htm");}}function loadArray(){imageNums = new Array(1,2,3,4,5,6);}function randomizeImages(){for (var i=0; i<finalArraySize; i++){var index = (Math.round(Math.random() * 10000) % finalNums.length);randomNums[i] = finalNums[index];for (var j=index; j<finalNums.length-1;j++){finalNums[j]=finalNums[j+1];}finalNums.length--;}}function setCookie(name, value, expires, path, domain, secure){document.cookie = name + "=" + escape (value) +((expires) ? "; expires=" + expires.toGMTString() : "") +((path) ? "; path=" + path : "") +((domain) ? "; domain=" + domain : "") +((secure) ? "; secure" : "");}function setDifferent(){var index = (Math.round(Math.random() * 10000) % differentChoices);differentPic = "different_" + index;}function setImages(){document.pic0.src="pics/" + randomNums[0] + ".gif";document.pic1.src="pics/" + randomNums[1] + ".gif";document.pic2.src="pics/" + randomNums[2] + ".gif";document.pic3.src="pics/" + randomNums[3] + ".gif";}function startOver(){getImages();setImages();}