83 lines
1.9 KiB
JavaScript
Executable File
83 lines
1.9 KiB
JavaScript
Executable File
var startTime=new Date();
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var endTime=new Date();
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var startPressed=false;
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var bgChangeStarted=false;
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var maxWait=20;
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var timerID;
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function startTest()
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{
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document.bgColor=document.response.bgColorChange.options[document.response.bgColorChange.selectedIndex].text;
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bgChangeStarted=true;
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startTime=new Date();
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}
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function remark(responseTime)
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{
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var responseString="";
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if (responseTime < 0.10)
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responseString="Well done!";
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if (responseTime >= 0.10 && responseTime < 0.20)
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responseString="Nice!";
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if (responseTime >=0.20 && responseTime < 0.30)
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responseString="Could be better...";
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if (responseTime >=0.30 && responseTime < 0.60)
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responseString="Keep practising!";
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if (responseTime >=0.60 && responseTime < 1)
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responseString="Have you been drinking?";
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if (responseTime >=1)
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responseString="Did you fall asleep?";
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return responseString;
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}
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function stopTest()
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{
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if(bgChangeStarted)
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{
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endTime=new Date();
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var responseTime=(endTime.getTime()-startTime.getTime())/1000;
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document.bgColor="black";
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alert("Your response time is: " + responseTime + " seconds " + "\n" + remark(responseTime));
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startPressed=false;
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bgChangeStarted=false;
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}
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else
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{
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if (!startPressed)
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{
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alert("Press start first to start test.");
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}
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else
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{
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clearTimeout(timerID);
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startPressed=false;
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alert("You pressed STOP too early!");
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}
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}
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}
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var randMULTIPLIER=0x015a4e35;
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var randINCREMENT=1;
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var today=new Date();
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var randSeed=today.getSeconds();
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function randNumber()
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{
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randSeed = (randMULTIPLIER * randSeed + randINCREMENT) % (1 << 31);
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return((randSeed >> 15) & 0x7fff) / 32767;
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}
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function startit()
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{
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if(startPressed)
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{
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alert("Already started. Press stop to stop");
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return;
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}
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else
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{
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startPressed=true;
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timerID=setTimeout('startTest()', 6000*randNumber());
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}
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} |