请高手帮忙分析一下这js代码
STR_UINTIP=1STR_QLOGIN_VERSION_ERR=2
STR_NO_UIN=3
STR_NO_PWD=4
STR_NO_VCODE=5
STR_INV_UIN=6
STR_INV_VCODE=7
STR_UIN=8
STR_PWD=9
STR_VCODE=10
STR_VCODE_TIP=11
STR_CHANGE_VCODE=12
STR_REMEMBER_PWD=13
STR_1_DAY=14
STR_1_WEEK=15
STR_1_MONTH=16
STR_HALF_YEAR=17
STR_1_YEAR=18
STR_FORGET_PWD=19
STR_LOGIN=20
STR_RESET=21
STR_SWITCH_QLOGIN=22
STR_LOGIN_TITLE=23
STR_QLOGIN_INTRO=24
STR_QLOGINING=25
STR_QLOGIN_HELP=26
STR_SWITCH_NORMAL=27
STR_QLOGIN=28
STR_QLOGIN_BUSY=29
STR_QLOGIN_OFFLINE=30
STR_QLOGIN_OTHER_ERR=31
STR_BACK=32
STR_RETRY=33
function ptui_str(A){A-=1
if(A>=0&&A<g_strArray.length){return g_strArray[A]}return""}function ptui_mapStr(B){for(i=0
i<B.length
i++){var A=document.getElementById(B[i][1])
if(A!=null){if("A"==A.nodeName||"U"==A.nodeName||"OPTION"==A.nodeName){if(A.innerHTML==""){A.innerHTML=ptui_str(B[i][0])}}else{if("INPUT"==A.nodeName){if(A.value==""){A.value=ptui_str(B[i][0])}}else{if("IMG"==A.nodeName){A.alt=ptui_str(B[i][0])}}}}}}function ptui_onUserFocus(C,A){var B=document.getElementById(C)
if(ptui_str(STR_UINTIP)==B.value){B.value=""}B.style.color=A}function ptui_onUserBlue(C,A){var B=document.getElementById(C)
if(""==B.value){B.value=ptui_str(STR_UINTIP)
B.style.color=A}}var g_speedArray=new Array()
function ptui_setSpeed(B){if(B<=0){return }var A=g_speedArray.length
g_speedArray[A]=new Array(B,new Date())}function ptui_reportSpeed(B){if(Math.random()>0.1){return }url="http://isdspeed.
for(var A=0
A<g_speedArray.length
A++){url=url+"&"+g_speedArray[A][0]+"="+(g_speedArray[A][1]-B)}imgSendTimePoint=new Image()
imgSendTimePoint.src=url}function ptui_showDiv(A,B){var C=document.getElementById(A)
if(null==C){return }if(B){C.style.display="block"}else{C.style.display="none"}}function ptui_notifySize(B){try{obj=document.getElementById(B)
if(obj){if(parent.ptlogin2_onResize){width=1
height=1
if(obj.offsetWidth>0){width=obj.offsetWidth}if(obj.offsetHeight>0){height=obj.offsetHeight}parent.ptlogin2_onResize(width,height)}}}catch(A){}}function ptui_notifyClose(){try{if(parent.ptlogin2_onClose){parent.ptlogin2_onClose()}else{if(top==this){window.close()}}}catch(A){window.close()}}function ptui_setUinColor(D,B,A){var C=document.getElementById(D)
if(ptui_str(STR_UINTIP)==C.value){C.style.color=A}else{C.style.color=B}}function ptui_onEnableLLogin(B){var A=B.low_login_enable
var C=B.low_login_hour
if(A!=null&&C!=null){C.disabled=!A.checked}}function ptui_changeImgEx(D,C,F,E){var A=document.getElementById("imgVerify")
if(A!=null){A.src=E+"?aid="+C+"&"+Math.random()
var B=document.getElementById("verifycode")
if(B!=null&&B.disabled==false&&F){B.focus()
B.select()}}}function ptui_changeImg(B,A,C){ptui_changeImgEx(B,A,C,"http://ptlogin2."+B+"/getimage")}function ptui_changeImgHttps(B,A,C){ptui_changeImgEx(B,A,C,"./getimage")}function ptui_checkQQUin(qquin){if(qquin.length==0){return false}if(!(new RegExp(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/).test(qquin))){if(qquin.length<5||qquin.length>12||parseInt(qquin)<1000){return false}var exp=eval("/^[0-9]*$/")
return exp.test(qquin)}return true}function ptui_checkPwdOnInput(){if(document.getElementById("p").value.length>=16){return false}return true}function ptui_onLogin(A){try{if(parent.ptlogin2_onLogin){if(!parent.ptlogin2_onLogin()){return false}}if(parent.ptlogin2_onLoginEx){var D=A.u.value
var B=A.verifycode.value
if(ptui_str(STR_UINTIP)==D){D=""}if(!parent.ptlogin2_onLoginEx(D,B)){return false}}}catch(C){}return ptui_checkValidate(A)}function ptui_onLoginEx(B,C){if(ptui_onLogin(B)){var A=new Date()
A.setHours(A.getHours()+24*30)
setCookie("ptui_loginuin",B.u.value,A,"/","ui.ptlogin2."+C)
return true}return false}function ptui_setDefUin(B,A){if(A==""||A==null){A=getCookie("ptui_loginuin")}if(A!=""&&A!=null){B.u.value=A}}function ptui_onReset(A){try{if(parent.ptlogin2_onReset){if(!parent.ptlogin2_onReset()){return false}}}catch(B){}return true}function ptui_initFocus(B){try{var A=B.u
var D=B.p
var E=B.verifycode
if(A.value==""||ptui_str(STR_UINTIP)==A.value){A.focus()
return }if(D.value==""){D.focus()
return }if(E.value==""){E.focus()}}catch(C){}}function ptui_checkValidate(B){var A=B.u
var C=B.p
var D=B.verifycode
if(A.value==""||ptui_str(STR_UINTIP)==A.value){alert(ptui_str(STR_NO_UIN))
A.focus()
return false}if(C.value==""){alert(ptui_str(STR_NO_PWD))
C.focus()
return false}if(D.value==""){alert(ptui_str(STR_NO_VCODE))
D.focus()
return false}if(!ptui_checkQQUin(A.value)){alert(ptui_str(STR_INV_UIN))
A.focus()
A.select()
return false}if(D.value.length!=4){alert(ptui_str(STR_INV_VCODE))
D.focus()
D.select()
return false}C.setAttribute("maxlength","32")
preprocess(B)
return true}function getCookieVal(B){var A=document.cookie.indexOf("
",B)
if(A==-1){A=document.cookie.length}return unescape(document.cookie.substring(B,A))}function getCookie(D){var B=D+"="
var F=B.length
var A=document.cookie.length
var E=0
while(E<A){var C=E+F
if(document.cookie.substring(E,C)==B){return getCookieVal(C)}E=document.cookie.indexOf(" ",E)+1
if(E==0){break}}return null}function setCookie(C,E){var A=setCookie.arguments
var H=setCookie.arguments.length
var B=(2<H)?A[2]:null
var G=(3<H)?A[3]:null
var D=(4<H)?A[4]:null
var F=(5<H)?A[5]:null
document.cookie=C+"="+escape(E)+((B==null)?" ":("
expires ="+B.toGMTString()))+((G==null)?" ":("
path = "+G))+((D==null)?" ":("
domain ="+D))+((F==true)?"
secure":" ")}var hexcase=1
var b64pad=""
var chrsz=8
var mode=32
function preprocess(A){var B=""
B+=A.verifycode.value
B=B.toUpperCase()
A.p.value=md5(md5_3(A.p.value)+B)
return true}function md5_3(B){var A=new Array
A=core_md5(str2binl(B),B.length*chrsz)
A=core_md5(A,16*chrsz)
A=core_md5(A,16*chrsz)
return binl2hex(A)}function md5(A){return hex_md5(A)}function hex_md5(A){return binl2hex(core_md5(str2binl(A),A.length*chrsz))}function b64_md5(A){return binl2b64(core_md5(str2binl(A),A.length*chrsz))}function str_md5(A){return binl2str(core_md5(str2binl(A),A.length*chrsz))}function hex_hmac_md5(A,B){return binl2hex(core_hmac_md5(A,B))}function b64_hmac_md5(A,B){return binl2b64(core_hmac_md5(A,B))}function str_hmac_md5(A,B){return binl2str(core_hmac_md5(A,B))}function md5_vm_test(){return hex_md5("abc")=="900150983cd24fb0d6963f7d28e17f72"}function core_md5(K,F){K[F>>5]|=128<<((F)%32)
K[(((F+64)>>>9)<<4)+14]=F
var J=1732584193
var I=-271733879
var H=-1732584194
var G=271733878
for(var C=0
C<K.length
C+=16){var E=J
var D=I
var B=H
var A=G
J=md5_ff(J,I,H,G,K[C+0],7,-680876936)
G=md5_ff(G,J,I,H,K[C+1],12,-389564586)
H=md5_ff(H,G,J,I,K[C+2],17,606105819)
I=md5_ff(I,H,G,J,K[C+3],22,-1044525330)
J=md5_ff(J,I,H,G,K[C+4],7,-176418897)
G=md5_ff(G,J,I,H,K[C+5],12,1200080426)
H=md5_ff(H,G,J,I,K[C+6],17,-1473231341)
I=md5_ff(I,H,G,J,K[C+7],22,-45705983)
J=md5_ff(J,I,H,G,K[C+8],7,1770035416)
G=md5_ff(G,J,I,H,K[C+9],12,-1958414417)
H=md5_ff(H,G,J,I,K[C+10],17,-42063)
I=md5_ff(I,H,G,J,K[C+11],22,-1990404162)
J=md5_ff(J,I,H,G,K[C+12],7,1804603682)
G=md5_ff(G,J,I,H,K[C+13],12,-40341101)
H=md5_ff(H,G,J,I,K[C+14],17,-1502002290)
I=md5_ff(I,H,G,J,K[C+15],22,1236535329)
J=md5_gg(J,I,H,G,K[C+1],5,-165796510)
G=md5_gg(G,J,I,H,K[C+6],9,-1069501632)
H=md5_gg(H,G,J,I,K[C+11],14,643717713)
I=md5_gg(I,H,G,J,K[C+0],20,-373897302)
J=md5_gg(J,I,H,G,K[C+5],5,-701558691)
G=md5_gg(G,J,I,H,K[C+10],9,38016083)
H=md5_gg(H,G,J,I,K[C+15],14,-660478335)
I=md5_gg(I,H,G,J,K[C+4],20,-405537848)
J=md5_gg(J,I,H,G,K[C+9],5,568446438)
G=md5_gg(G,J,I,H,K[C+14],9,-1019803690)
H=md5_gg(H,G,J,I,K[C+3],14,-187363961)
I=md5_gg(I,H,G,J,K[C+8],20,1163531501)
J=md5_gg(J,I,H,G,K[C+13],5,-1444681467)
G=md5_gg(G,J,I,H,K[C+2],9,-51403784)
H=md5_gg(H,G,J,I,K[C+7],14,1735328473)
I=md5_gg(I,H,G,J,K[C+12],20,-1926607734)
J=md5_hh(J,I,H,G,K[C+5],4,-378558)
G=md5_hh(G,J,I,H,K[C+8],11,-2022574463)
H=md5_hh(H,G,J,I,K[C+11],16,1839030562)
I=md5_hh(I,H,G,J,K[C+14],23,-35309556)
J=md5_hh(J,I,H,G,K[C+1],4,-1530992060)
G=md5_hh(G,J,I,H,K[C+4],11,1272893353)
H=md5_hh(H,G,J,I,K[C+7],16,-155497632)
I=md5_hh(I,H,G,J,K[C+10],23,-1094730640)
J=md5_hh(J,I,H,G,K[C+13],4,681279174)
G=md5_hh(G,J,I,H,K[C+0],11,-358537222)
H=md5_hh(H,G,J,I,K[C+3],16,-722521979)
I=md5_hh(I,H,G,J,K[C+6],23,76029189)
J=md5_hh(J,I,H,G,K[C+9],4,-640364487)
G=md5_hh(G,J,I,H,K[C+12],11,-421815835)
H=md5_hh(H,G,J,I,K[C+15],16,530742520)
I=md5_hh(I,H,G,J,K[C+2],23,-995338651)
J=md5_ii(J,I,H,G,K[C+0],6,-198630844)
G=md5_ii(G,J,I,H,K[C+7],10,1126891415)
H=md5_ii(H,G,J,I,K[C+14],15,-1416354905)
I=md5_ii(I,H,G,J,K[C+5],21,-57434055)
J=md5_ii(J,I,H,G,K[C+12],6,1700485571)
G=md5_ii(G,J,I,H,K[C+3],10,-1894986606)
H=md5_ii(H,G,J,I,K[C+10],15,-1051523)
I=md5_ii(I,H,G,J,K[C+1],21,-2054922799)
J=md5_ii(J,I,H,G,K[C+8],6,1873313359)
G=md5_ii(G,J,I,H,K[C+15],10,-30611744)
H=md5_ii(H,G,J,I,K[C+6],15,-1560198380)
I=md5_ii(I,H,G,J,K[C+13],21,1309151649)
J=md5_ii(J,I,H,G,K[C+4],6,-145523070)
G=md5_ii(G,J,I,H,K[C+11],10,-1120210379)
H=md5_ii(H,G,J,I,K[C+2],15,718787259)
I=md5_ii(I,H,G,J,K[C+9],21,-343485551)
J=safe_add(J,E)
I=safe_add(I,D)
H=safe_add(H,B)
G=safe_add(G,A)}if(mode==16){return Array(I,H)}else{return Array(J,I,H,G)}}function md5_cmn(F,C,B,A,E,D){return safe_add(bit_rol(safe_add(safe_add(C,F),safe_add(A,D)),E),B)}function md5_ff(C,B,G,F,A,E,D){return md5_cmn((B&G)|((~B)&F),C,B,A,E,D)}function md5_gg(C,B,G,F,A,E,D){return md5_cmn((B&F)|(G&(~F)),C,B,A,E,D)}function md5_hh(C,B,G,F,A,E,D){return md5_cmn(B^G^F,C,B,A,E,D)}function md5_ii(C,B,G,F,A,E,D){return md5_cmn(G^(B|(~F)),C,B,A,E,D)}function core_hmac_md5(C,F){var E=str2binl(C)
if(E.length>16){E=core_md5(E,C.length*chrsz)}var A=Array(16),D=Array(16)
for(var B=0
B<16
B++){A[B]=E[B]^909522486
D[B]=E[B]^1549556828}var G=core_md5(A.concat(str2binl(F)),512+F.length*chrsz)
return core_md5(D.concat(G),512+128)}function safe_add(A,D){var C=(A&65535)+(D&65535)
var B=(A>>16)+(D>>16)+(C>>16)
return(B<<16)|(C&65535)}function bit_rol(A,B){return(A<<B)|(A>>>(32-B))}function str2binl(D){var C=Array()
var A=(1<<chrsz)-1
for(var B=0
B<D.length*chrsz
B+=chrsz){C[B>>5]|=(D.charCodeAt(B/chrsz)&A)<<(B%32)}return C}function binl2str(C){var D=""
var A=(1<<chrsz)-1
for(var B=0
B<C.length*32
B+=chrsz){D+=String.fromCharCode((C[B>>5]>>>(B%32))&A)}return D}function binl2hex(C){var B=hexcase?"0123456789ABCDEF":"0123456789abcdef"
var D=""
for(var A=0
A<C.length*4
A++){D+=B.charAt((C[A>>2]>>((A%4)*8+4))&15)+B.charAt((C[A>>2]>>((A%4)*8))&15)}return D}function binl2b64(D){var C="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
var F=""
for(var B=0
B<D.length*4
B+=3){var E=(((D[B>>2]>>8*(B%4))&255)<<16)|(((D[B+1>>2]>>8*((B+1)%4))&255)<<8)|((D[B+2>>2]>>8*((B+2)%4))&255)
for(var A=0
A<4
A++){if(B*8+A*6>D.length*32){F+=b64pad}else{F+=C.charAt((E>>6*(3-A))&63)}}}return F}
/* |xGv00|ccbfd68b5fceb62707a9e4ce87b8c813 */
