Chapter 12 //=4) this.ns4 = (this.b=="ns" && this.v==4) this.ns5 = (this.b=="ns" && this.v==5) this.ie = (this.b=="ie" && this.v>=4) this.ie4 = (this.version.indexOf('MSIE 4')>0) this.ie5 = (this.version.indexOf('MSIE 5')>0) this.min = (this.ns||this.ie) this.CRAPBrowser = (this.ie && this.mac); //Cannot Resolve Addresses Properly } is = new BrowserCheck(); var LocFolder = GetFolder(window.location.href); function GetFolder(LocPath){ LocPath = ReplaceStuff('\'','%27',LocPath); var i = LocPath.lastIndexOf('/'); if (i<0){i=LocPath.lastIndexOf('\\')}; return LocPath.substring(0,i); } function CombineURLs(InURL){ var i = InURL.indexOf('../'); var s = LocFolder; while (i >- 1){ s = GetFolder(s); InURL = InURL.substring(3,InURL.length); i = InURL.indexOf('../'); } return s + '/' + InURL; } x = new Array(); function ResolveURLs(InText,Attribute){ x.length=0; var Temp = InText.toLowerCase(); var z; var AttLen = Attribute.length + 2; var y=Temp.lastIndexOf(Attribute + '="'); while (y>-1){ var sLoc = y+AttLen; if (Temp.substring(sLoc,sLoc+5) != 'http:'){ x[x.length]=new Array(); x[x.length-1][0] = sLoc; z = Temp.indexOf('"',sLoc); x[x.length-1][1] = z; x[x.length-1][2] = InText.substring(sLoc,z); } Temp = Temp.substring(0,y); y=Temp.lastIndexOf(Attribute + '="'); } for (var j=0; j'; NavBar+=''; NavBar+=''; if (is.CRAPBrowser){NavBar=ResolveAllURLs(NavBar)}; var TitleCode = ''; TitleCode += '' + ExerciseTitle + '
'; TitleCode += '' + ExerciseSubtitle + '
'; TitleCode += '
'; var QButtonsOpener = ''; QButtonsOpener += '
'; QButtonsOpener += ''; var QButtonsCloser = ''; QButtonsCloser += '
'; var TableOpener = '
'; TableOpener += ''; var QRow = ''; QRow += ''; var ARow = ''; ARow += ''; ARow += ''; var MARow = ''; var CheckButton = '' } OutString += '
'; QRow += '[QNumber][Question]
 '; QRow += '
[Ans]
'; MARow += '[Ans]
0){ history.go((BackSkip+1)*-1); } else{ parent.history.back(); } } function ReduceItems(){ var ItemToDump=0; var j=0; while (I.length > QsToShow){ ItemToDump = Math.floor(I.length*Math.random()); for (j=ItemToDump; j<(I.length-1); j++){ I[j] = I[j+1]; } I.length = I.length-1; } } function Shuffle(InArray){ Temp = new Array(); var Len = InArray.length; var j = Len; for (var i=0; i0){ OutString += '
'; OutString += ''; OutString += Feedback; OutString += '
'; //Write it to the frame TopFrame.document.clear(); TopFrame.document.open(); TopFrame.document.write(OutString); TopFrame.document.close(); } function StartUp(){ //Reduce array if required if (QsToShow < I.length){ ReduceItems(); } //Shuffle stuff if required if (ShuffleQs == true){ I = Shuffle(I); } if (ShuffleAs == true){ for (var i=0; i-1){ FirstBit = InString.substring(0, i); LastBit = InString.substring(i + Token.length, InString.length); InString = FirstBit + Replacement + LastBit; i = InString.indexOf(Token); } return InString; } function ChangeQ(ChangeBy){ var NewNum = CurrQNum + ChangeBy; if ((NewNum >= 0)&&(NewNum
'; } Output = Output + BuildQuestion(I.length-1); Output = TableOpener + Output + TableCloser; DisplayExercise(Output); } function ShowQuestion(QNum){ //First, create the Q number readout at the top var Readout = (QNum+1) + '/' + I.length; while (Readout.length < 7){ Readout = ' ' + Readout + ' '; } Readout = QButtonsOpener + Readout + QButtonsCloser; var Output = BuildQuestion(QNum); Output = TableOpener + Output + TableCloser; DisplayExercise(Readout + Output); //Mark the answers already done for (i=0; i=0; i--){ //Find any incorrect choices var b = eval('BottomFrame.document.QForm.A_' + QNum + '_' + i); if (b != null){ //if it's wrong, count it if (b.checked == true){ Status[QNum][1][i] = 'C'; } else{ Status[QNum][1][i] = 'U'; } if (((b.checked == true) && (b.value == "0"))||((b.checked == false)&&(b.value == "1"))){ TotWrong++; } } } if (TotWrong == 0){ Output = DefaultRight; } else{ Output = DefaultWrong + '
' + (TotAns-TotWrong) + '/' + TotAns; } //If you haven't tried the question before if (Status[QNum][0] == 0){ if (TotWrong > 0){ Status[QNum][2]++; } if (TotWrong == 0){ Status[QNum][0] = 1; //Calculate the score for this question as a floating-point fraction of 1 Status[QNum][3] = ((Status[QNum][1].length - Status[QNum][2]) - 1) / (Status[QNum][1].length - 1); //If less than zero, set to zero if (Status[QNum][3] < 0){Status[QNum][3] = 0;} } } //Check whether the quiz is finished var Finished = true; for (var i=0; i' + YourScoreIs + ' ' + Score + '%.'; } if (Finished == true){ EraseFeedback = false; var CFT = 0; for (i=0; i 0){ WriteFeedback(Output); } } function CheckAnswer(QNum, ANum){ var Output = I[QNum][1][ANum][1]; if (Output==''){ if (I[QNum][1][ANum][2] == 1){ Output = DefaultRight; } else{ Output = DefaultWrong; } } //If it's not been previously answered correctly if (Status[QNum][0] == 0){ //If it's a correct answer if (I[QNum][1][ANum][2] == 1){ Status[QNum][0] = 1;//Mark the Q as done Status[QNum][1][ANum] = 'R'; MarkAnswer(QNum, ANum, true); //Calculate the score for this question as a floating-point fraction of 1 var PossibleWrongs = 0; for (var i=0; i' + YourScoreIs + ' ' + Score + '%.'; } if (Finished == true){ EraseFeedback = false; var CFT = 0; for (i=0; i 0){ WriteFeedback(Output); } } function MarkAnswer(QNum, ANum, Right){ var Mark = CorrectIndicator; if (Right == false){Mark = IncorrectIndicator;} if (eval('BottomFrame.document.QForm.FB_' + QNum + '_' + ANum) != null){ eval('BottomFrame.document.QForm.FB_' + QNum + '_' + ANum).value = Mark; } } function CheckCheckbox(QNum, ANum){ if (eval('BottomFrame.document.QForm.A_' + QNum + '_' + ANum) != null){ eval('BottomFrame.document.QForm.A_' + QNum + '_' + ANum).checked = true; } } function Blank(){ return '©Half-Baked Software. Loading...'; } //--> //]]>