Hesap Makinesi

0

7 8 9 / 4 5 6 * 1 2 3 - 0 +/- . + c =

<script language="javascript1.2">/* dhtml calculator script� dynamic drive (www.dynamicdrive.com) for full source code, installation instructions, 100's more dhtml scripts, and terms of use, visit dynamicdrive.com */ var var var var var var var var

results='' previouskey='' re=/(\/|\*|\+|-)/ re2=/(\/|\*|\+|-){2}$/ re3=/.+(\/|\*|\+|-).+/ re4=/\d|\./ re5=/^[^\/\*\+].+\d$/ re6=/\./

function calculate(){ if (event.srcelement.tagname=="td"){ if (event.srcelement.innertext.match(re4)&&previouskey=="=") results='' if (result.innertext.match(re3)&&event.srcelement.innertext.match(re)){ if (!results.match(re5)){ result.innertext="error!" return } results=eval(results) if (results.tostring().length>=12&&results.tostring().match(re6)) results=results.tostring().substring(0,12) result.innertext=results } results+=event.srcelement.innertext if (results.match(re2)) results=results.substring(0,results.length-2)+results.charat(results.length-1) result.innertext=results } } function calculateresult(){ if (!results.match(re5)){ result.innertext="error!" return

} results=eval(results) if (results.tostring().length>=12&&results.tostring().match(re6)) results=results.tostring().substring(0,12) result.innertext=results }

function pn(){ if (result.innertext.charat(0)!='-') result.innertext=results='-'+result.innertext else if (result.innertext.charat(0)=='-') result.innertext=results=result.innertext*(-1) }