Javascript 24-point game code

<Meta http-equiv = "Content-Type" content = "text/html; charset = gb2312"> <br/> <style> body, TD {font-family:; font-size: 9pt; Background-color: # 6699ff; color: # ffffcc;} </P> <p>. tht {font-family:; font-size: 24pt; color: #000066; font-weight: bold} </P> <p> input {border: # c6ffff 1px solid; Background-color: #003399; color: # ffffff ;}. IPK {width: 39; Height: 30; font-size: 14pt; font-weight: bold }. tit {font-size: 14pt; Border: #333399 2px solid; Background-color: # ffffff; color: #333399; font-weight: bold }. BG {width: 70; Height: 32 ;}. XG {width: 75; Height: 30 ;}</P> <p ># pkbox {width: 320; Height: 110 ;}# pkbox span {border: #660099 3px solid; Background-color: # ffffff; width: 68; Height: 100; color: #000000; font-size: 50px; text-align: center; cursor: hand; padding: 16 0; font-weight: bold ;}</P> <p> # sskgxx {border: #000066 2px solid; Background-color: # 6666ff; width: 130; Height: 180; color: # ffccff; overflow: auto; padding: 4 7} # k_jg {color: # ff6666; font-size: 14pt; font-weight: bold; width: 130 ;}</P> </style> <p> <SPAN class = "THT"> 24-point game </span> author: waves Date: 2005-8-13 </P> <HR/> <Table Style = "float: left; "> <tr> <TD width =" 330 "Height =" 20 "colspan =" 2 "> Average Time: <span id = "k_pjys"> </span> seconds <br/> correct: <span id = "k_zq"> </span> <br/> error: <span id = "k_cw"> </span> <br/> ignore: <span id = "k_hl"> </span> </TD> </tr> <TD width = "330" Height = "110" colspan = "2"> <span id = "pk0" onclick = "TOCs (0) "> </span> <br/> <span id =" PK1 "onclick =" TOCs (1) "> </span> <br/> <span id =" PK2 "onclick =" TOCs (2) "> </span> <br/> <span id =" pk3 "onclick =" TOCs (3) "> </span> </TD> </tr> <TD width =" 80 "valign =" TOP "Height =" 110 "> <input type =" button "value =" system licensing "onclick =" fpaasystem () "Class =" XG "> <input type =" button "value =" players "onclick =" fpaainput () "Class =" XG "> <input type =" button "value =" view answer "onclick =" ckda () "Class =" XG "> </TD> <TD width =" 250 "valign =" TOP "Height =" 110 "> <input type =" text "size =" 20 "Name =" maid "class =" tit "> <input type =" button "value =" + "onclick =" maid. value + = This. value "class =" IPK "> <input type =" button "value ="-"onclick =" ststext. value + = This. value "class =" IPK "> <input type =" button "value =" * "onclick =" ststext. value + = This. value "class =" IPK "> <input type =" button "value ="/"onclick =" ststext. value + = This. value "class =" IPK "> <input type =" button "value =" ("onclick =" ststext. value + = This. value "class =" IPK "> <input type =" button "value =") "onclick =" ststext. value + = This. value "class =" IPK "> <input type =" button "value =" back "onclick =" ststext. value = maid. value. slice (0,-1) "class =" BG "> <input type =" button "value =" clear "onclick =" ststext. value = ''" class = "BG"> <input type = "button" value = "OK" onclick = "okaa () "Class =" BG "> </TD> </tr> </table> <p>