var fader=new Array(),fadeQ=new Array();var RGB=new Array(256),k=0,hex=["0","1","2","3","4","5","6","7","8","9","a","b","c","d","e","f"];for(var i=0;i<16;i++)for(var j=0;j<16;j++)RGB[k++]=hex[i]+hex[j];function fadeObj(number,id,colOff,colOn,spdIn,spdOut,def){this.number=number;this.id=id;this.colOff=[parseInt(colOff.substr(0,2),16),parseInt(colOff.substr(2,2),16),parseInt(colOff.substr(4,2),16)];this.colOn=[parseInt(colOn.substr(0,2),16),parseInt(colOn.substr(2,2),16),parseInt(colOn.substr(4,2),16)];this.colNow=[parseInt(colOff.substr(0,2),16),parseInt(colOff.substr(2,2),16),parseInt(colOff.substr(4,2),16)];this.spdIn=spdIn;this.spdOut=spdOut;this.def=def;this.direction=false;this.active=false;this.message=new Array();this.messageNow=0;}
function fadeCmd(number,message,direction){this.number=number;this.message=message;this.direction=direction;}
function fade(number,message,direction){if(fader[number]&&fader[number].def&&fader[number].messageNow==0&&fader[number].direction)
{fadeQ[fadeQ.length]=new fadeCmd(number,0,false);fadeQ[fadeQ.length]=new fadeCmd(number,message,direction);message=0;direction=false;}
else
fadeQ[fadeQ.length]=new fadeCmd(number,message,direction);setTimeout(function(){fadeBegin(number);},20);}
function fadeBegin(number){for(var x=0;x<fadeQ.length;x++){for(var y=x+1;y<fadeQ.length;y++){if(fadeQ[x].number==fadeQ[y].number&&fadeQ[x].message==fadeQ[y].message&&fadeQ[x].direction!=fadeQ[y].direction){fadeQ.splice(x,1);fadeQ.splice(y-1,1);}}}
if(fader[number]&&!fader[number].active){for(var x=0;x<fadeQ.length;x++){if(fadeQ[x].number==number&&fadeQ[x].direction!=fader[number].direction){var del=fadeQ.splice(x,1);setTimeout(function(){fadeEng(number,del[0].message,del[0].direction);},0);break;}}}}
function fadeEng(number,message,direction)
{if(!fader[number].active)
{fader[number].active=true;fader[number].direction=direction;fader[number].messageNow=message;document.getElementById(fader[number].id).innerHTML=fader[number].message[message];}
var iniCol=(direction)?fader[number].colOff:fader[number].colOn;var endCol=(direction)?fader[number].colOn:fader[number].colOff;var incCol=fader[number].colNow;var spd=(direction)?fader[number].spdIn:fader[number].spdOut;for(var x=0;x<3;x++){var incr=(endCol[x]-iniCol[x])/spd;incCol[x]=(incr<0)?Math.max(incCol[x]+incr,endCol[x]):Math.min(incCol[x]+incr,endCol[x]);}
document.getElementById(fader[number].id).style.color="#"+RGB[parseInt(incCol[0])]+RGB[parseInt(incCol[1])]+RGB[parseInt(incCol[2])];if(incCol[0]==endCol[0]&&incCol[1]==endCol[1]&&incCol[2]==endCol[2]){fader[number].active=false;for(var x=0;x<fadeQ.length;x++){if(fadeQ[x].number==number){var del=fadeQ.splice(x,1);setTimeout(function(){fadeEng(number,del[0].message,del[0].direction);},0);return false;}}
if(!direction){if(fader[number].def){setTimeout(function(){fadeEng(number,0,true);},0);}else document.getElementById(fader[number].id).innerHTML="&nbsp;";}}else setTimeout(function(){fadeEng(number,message,direction);},0);}
function throbFade()
{if(throbStep%2==0&&throbStep!=0)
curMessage=Math.floor(Math.random()*fader[2].message.length);fade(2,curMessage,(throbStep%2)?false:true);setTimeout("throbFade();",(throbStep%2)?300:4000);throbStep++;}
fader[2]=new fadeObj(2,'fade','bbbbbb','000000',70,70,false);fader[2].message[0]="how many degrees are in a circle?";fader[2].message[1]="85.7 degrees Fahrenheit in Celsius";fader[2].message[2]="10 pounds + 5 ounces in kilograms";fader[2].message[3]="how much is 704 in a binary form?";fader[2].message[4]="(three hundred * 500) / 1,200";fader[2].message[5]="10th root of 1024";fader[2].message[6]="one cup in teaspoons";fader[2].message[7]="how many feet in 100 meters";fader[2].message[8]="how many seconds are in a decade?";var throbStep=0;var curMessage=Math.floor(Math.random()*fader[2].message.length);