// Grammar Monster © | Copyright Registration Number: 226604 | All rights reserved  

selec = new Array (3)
correct = new Array (100)

selec[1]= "The #principal =principle reason for this letter is to outline a number of observations regarding the staff. I do not disagree with you in =principal #principle. Whilst the =principal #principle of your suggestion is fine, I have concerns over its practicalities. "
correct[11]= "The principal reason for this letter...#The adjective 'principal' means main or key.  In this example, the writer is talking about the <font color=yellow>main</font> reason for the letter."
correct[12]= "I do not agree with you in principle.#The noun 'principle' is versatile.  It can mean rule, belief, tenet or theory. The term 'in principle' is very common and can be translated as 'in theory' or 'according to the rules'. Remember, the word 'principal' means main or key or is the title given to the head of a school, particularly in the US."
correct[13]= "Whilst the principle of your suggestion is fine...# The noun 'principle' is versatile.  It can mean rule, belief, tenet or theory.  In this example, it best translates as tenet. Remember, the word 'principal' means main or key or is the title given to the head of a school, particularly in the US."

selec[2]= "You are the  #principal =principle culprit behind these misdemeanours.  Go and stand outside  #Principal =Principle Beckett's office.  You need to re-evaluate your  =principals #principles. "
correct[21]= "You are the principal culprit #The adjective 'principal' means main or key.  This example is about the <font color=yellow>main</font> culprit behind the misdemeanours."
correct[22]= "Go and stand outside Principal Beckett's office# The noun 'principal' is the title given to the head of a school, particularly in the US.  In this example, it is being used adjectivally in a person's title, which the reason it is written with a capital 'C'. "
correct[23]= "...to re-evaluate your principles.#The noun 'principle' is versatile.  It can mean rule, belief, tenet or theory.  In this example, it best translates as tenet. Remember, the word 'principal' means main or key or is the title given to the head of a school, particularly in the US."


selec[3]= "Your low profile and out-of-touch =principals #principles are the #principal =principle areas for us to develop."
correct[31]= "...out-of-touch principles#The noun 'principle' is versatile.  It can mean rule, belief, tenet or theory.  In this example, it best translates as beliefs. Remember, the word 'principal' means main or key or is the title given to the head of a school, particularly in the US."
correct[32]= "...are the principal areas for us to develop#The adjective 'principal' means main or key.  This example is about the <font color=yellow>main</font> areas for development."


ques = 0; var mid = ""

// choose a random sentence

ques = Math.ceil(2*Math.random())


mid = selec[ques]
var len = 0
var i = 0
var sw = 0
var ew = 0
var shw = ""
var wc = 0
var rep = ""
var ges = 0
var shr = 1
var score = 0; var wrong=0; var missed = 0; var total = 0; var tc=0; var totq = 0; var mar = 0; var nding=0
words = new Array (150)
check = new Array (150)
quest = new Array (20)
ans = new Array (150)
for (k = 0; k < 150; k++){check[k]=0}
for (k = 0; k < 150; k++){ans[k]=0}
len=mid.length

// check the text

function text(){
wc=0;
for (i = 0; i < len; i++){
if (mid.substr(i,1)==" " || mid.substr(i,1)=="," || mid.substr(i,1)=="."){
	ew=i+1; rep=mid.substr(i,1)
	if (mid.substr(sw,1)=="#" || mid.substr(sw,1)=="="){ans[wc]=1; sw++;}
	else {words[wc]=" " + mid.substr(sw, (ew-sw)) + " "}
	if (mid.substr(sw-1,1)=="="){ans[wc]=2;}
	if (check[wc]==1 && (ans[wc]==1 || ans[wc]==2)){words[wc]="<span class=curs onclick=sel('" + wc + "') style='background-color: #FFFF00'>" + mid.substr(sw, ((ew-sw)-1)) + "</span>" + rep}
	if (check[wc]==0 && (ans[wc]==1 || ans[wc]==2)){words[wc]="<span class=curs onclick=sel('" + wc + "') style='background-color: #FFFFFF'>" + mid.substr(sw, ((ew-sw)-1)) + "</span>" + rep}
	sw=ew
	wc++
}
}
display()
}


function display(){
shw=""; shr=1; totq=1; mar = 0
for (k = 0; k < wc; k++){
if (ans[k]==1 || ans[k]==2){shw = shw + "<font color=blue>" ; shr++;}
if (nding==1 && (ans[k]==1 || ans[k]==2)){mar = totq + (ques*10); shw = shw + "<span class=curs onclick=showcorrect(" + mar + ",event)>";}
shw = shw + words[k]
if (shr%2==0 && (ans[k]==1 || ans[k]==2)){shw = shw + "/ "}
if ((shr-1)%2==0 && (ans[k]==1 || ans[k]==2)){totq++}
if (nding==1 && (ans[k]==1 || ans[k]==2)){shw = shw + "</span>"}
if (ans[k]==1 || ans[k]==2){shw = shw + "</font>"}
}
document.getElementById('topmsg').innerHTML=shw;
sw=0
}

function sel(a){
chosen = ""; ges = 0; 
if (check[a]==0){check[a]=1; check[(a-1)]=0; a++; check[a]=0}
else {check[a]=0}
for (k = 0; k < wc ; k++){
if (check[k]==1){ges++}
}
document.getElementById('btmmsg').innerHTML="Number of selections: " + ges;

text()
}

function cler(){
for (k = 0; k < wc; k++){check[k]=0}
check[2]=1;sel(2)
text()
}

function showcorrect(a, e){
chosen = correct[(a)]

var posx = 0;
var posy = 0;

  // Get mouse position; IE & FF Compatibility!
  if (e.pageX || e.pageY)
  {
    posx = e.pageX;
    posy = e.pageY;
  }
  else if (e.clientX || e.clientY)
  {
    posx = e.clientX + document.body.scrollLeft
      + document.documentElement.scrollLeft;
    posy = e.clientY + document.body.scrollTop
      + document.documentElement.scrollTop;}

if (posx > 860){posx = 860}

document.getElementById('popup').style.left = parseInt(posx);
document.getElementById('popup').style.top = parseInt(posy);
document.getElementById('popup').style.display = 'block';


document.getElementById('popup').innerHTML="<table border=0 width=321 cellpadding=3 cellspacing=0 background='../images/footer.jpg' style='border: 6px solid #0000FF'><tr><th align=left width=311 style='color:white'><font color=yellow>THE ANSWER</font><br><br>&quot;<span id='toppmsg'></span>&quot; <img border=0 src=../images/bultik.gif width=11 height=11></th><td width=20 align=right valign=top><span onclick='clos()'><img border=0 src=../images/close.gif width=15 height=15></span></td></tr><tr><th align=left colspan=2 style='color: white'><br><font color=yellow>WHY?</font><br><br><span id='bottommsg'></span></th></tr></table>"

len=chosen.indexOf('#')

document.getElementById('toppmsg').innerHTML="<font color=white>" + chosen.substr(0,len) + "</font>";
document.getElementById('bottommsg').innerHTML="<font color=white>" + chosen.substr(len+1, (chosen.length)+1) + "</font>";
}

function clos(){
document.getElementById('popup').innerHTML="";}


// check the text

function look(){
wc=0; score = 0; wrong=0; missed = 0; tc = 0; 
for (i = 0; i < len; i++){
if (mid.substr(i,1)==" " || mid.substr(i,1)=="." || mid.substr(i,1)==","){
	ew=i+1; rep=mid.substr(i,1)
	if (mid.substr(sw,1)=="#"){ans[wc]=1; sw++; tc++} 
      if (mid.substr(sw,1)=="="){ans[wc]=2; sw++;}
	words[wc]=mid.substr(sw, (ew-sw))
	if (check[wc]==1 && ans[wc]==2){words[wc]="<span style='background-color: #FFFF00'>" + mid.substr(sw, ((ew-sw)-1)) + "</span>" + rep + "<img border=0 src=../images/bulxw.gif width=25 height=11> "; wrong++}
	if (check[wc]==0 && check[wc-1]==0 && check[wc+1]==0 && ans[wc]==1){words[wc]="<span style='background-color: #FFCCCC'>" + mid.substr(sw, ((ew-sw)-1)) + "</span>" + rep + "<img border=0 src=../images/bulxw.gif width=25 height=11> "; missed++}
	if (check[wc]==1 && ans[wc]==1){words[wc]="<span style='background-color: #CCFFCC'>" + mid.substr(sw, ((ew-sw)-1)) + "</span>" + rep + "<img border=0 src=../images/bultickw.gif width=25 height=11> "; score++}

	
	sw=ew
	wc++}
}
nding=1; display(); 
total = score -(wrong + missed)
document.getElementById('btmmsg').innerHTML="<table border=0><tr><td><b>Total Selections:</b></td><td width=50 align=center>" + ges + "</td><td></td></tr><tr><td BGCOLOR=#CCFFCC>Correct selections:</td><td align=center>" + score + "</td><td><font color=#999999>(score: "+ score + ")</font></td></tr><tr><td BGCOLOR=#FFFF00>Wrong selections:</td><td align=center>" + wrong + "</td><td><font color=#999999>(score: "+ wrong*-1 + ")</font></td></tr><tr><td BGCOLOR=#FFCCCC>Missed answers:</td><td align=center>" + missed + "</td><td><font color=#999999>(score: "+ missed*-1 + ")</font></td></tr><tr><td><b>Total Score:<b></td><td align=center>" + total + "</td><td><font color=#999999>(highest possible score: " + tc + ")</font></td></tr></table><br><span class=big>Click on the answers for explanations</span>."

document.getElementById('buttons').innerHTML="<input type='button' value='Next Test' style='background-color: #222299; color: #ffffff;' onClick='nexttest()'>"

}

function nexttest(){
mar=0
if (ques==1 && mar==0){ques=2;mid=selec[2]; mar=1}
if (ques==2 && mar==0){ques=3;mid=selec[3]; mar=1}
if (ques==3 && mar==0){ques=1;mid=selec[1]; mar=1}
for (k = 0; k < 150; k++){check[k]=0; ans[k]=0; words[k]=""}
var sw = 0
var ew = 0
nding = 0
len=mid.length
document.getElementById('popup').innerHTML="&nbsp;";
document.getElementById('btmmsg').innerHTML="<span id='btmmsg' class='mid'>&nbsp;</span>";
document.getElementById('buttons').innerHTML="<input type='button' value='Next test' style='background-color: #222299; color: #ffffff;' onClick='nexttest()'><input type='button' value='Clear my answers' style='background-color:#222299; color: #ffffff;' onclick='cler()'><input type='button' value='Check my answers' style='background-color:GREEN; color: #ffffff;' onclick='look()'>";
text()
}