JS Registration detection User name, password, mobile phone number, mailbox

Please enter your phone number: <input name=""Type="text"Id="Telphone"Value=""/><br/>Please enter your email address:<input name=""Type="text"Id="Mail"Value=""/><br/>Please enter your password for the first time:<input name=""Type="text"Id="MIMA1"Value=""/><br/>Please enter your password for the second time:<input name=""Type="text"Id="Mima2"Value=""/><br/>To detect if a password is valid:<input name=""Type="text"Id="Secury_mima"Value=""/&GT;&LT;BR/><input name=""Type="Button"onclick="check ();"Value="Start Detection"/><br/><br/><br/><div style="background: #000"Id="Checktel"></div><div style="background: #000"Id="Checkmail"></div><div style="background: #000"Id="CHECKREPSW"></div><div style="background: #000"Id="CHECKPSW"></div><div style="background: #000"Id="checkusr"></div></body><script>varXmlHttp;//this doesn't explain .varCHECKPSW;//Global variables for the same password detectionfunction Createxmlhttp () {if(window. ActiveXObject) {xmlHttp=NewActiveXObject ('Microsoft.XMLHTTP'); } Else if(window. XMLHttpRequest) {xmlHttp=NewXMLHttpRequest ();}}//detect if the user name is legitimatefunction check_usr (obj) {varObjValue =Obj.value;varb=/^[a-za-z\d]\w{2,Ten}[a-za-z\d]$/; if(!b.test (ObjValue)) {document.getelementbyidx_x ('checkusr'). InnerHTML ="<font color= ' #ff0000 ' > user name illegal!</font>"; return false; } Else{createxmlhttp (); Xmlhttp.open ("GET",".. /account/check.php?id="+ ObjValue,true); Xmlhttp.onreadystatechange=Checkback; Xmlhttp.send (NULL); }}function Checkback () {varBackvalue =NULL; if(xmlhttp.readystate==1) {document.getelementbyidx_x ('checkusr'). InnerHTML ="<font color= ' #ff0000 ' > Detection in ...</font>";} if(Xmlhttp.responsetext = =1) {//check.php not registered return 1, registration returned 2Backvalue ="<font color= ' #00c72e ' > can be used! </font>"; }Else{Backvalue="<font color= ' #ff0000 ' > Sorry, it's been registered! </font>"; } if(Xmlhttp.readystate = =4) {document.getelementbyidx_x ('checkusr'). InnerHTML =backvalue;}}//Determine if password entry is legal, one is length, one is no special characterfunction check_psw (obj) {CHECKPSW=Obj.value;if(Checkpsw.length >5&& checkpsw.length< +) {document.getelementbyidx_x ("CHECKPSW"). InnerHTML ="<font color= ' #00c72e ' > password can be used!</font>"; }Else{document.getelementbyidx_x ("CHECKPSW"). innerhtml="<font color= ' #ff0000 ' > password does not meet the length requirements!</font>"; } varb=/^[a-za-z\d]\w{2,Ten}[a-za-z\d]$/; if(!b.test (CHECKPSW)) {document.getelementbyidx_x ('checkusr'). InnerHTML ="<font color= ' #ff0000 ' > Password has illegal characters!</font>"; return false; }Else{document.getelementbyidx_x ("checkusr"). innerhtml="<font color= ' #ff0000 ' > Password settings meet the requirements </font>"; }}//determine if the password input is consistent two timesfunction CHECK_REPSW (obj1,obj2) {varobjvalue1=Obj1.value;varObjvalue2=Obj2.value; if(objvalue1==objvalue2) {document.getelementbyidx_x ("CHECKREPSW"). innerhtml="<font color= ' #00c72e ' > two times input password consistent! </font>"; }Else{document.getelementbyidx_x ("CHECKREPSW"). innerhtml="<font color= ' #ff0000 ' > two times the password entered is not the same!</font>"; } } //determine if the phone number format is legalfunction Check_tel (obj) {varObjvalue=Obj.value;varregx=/^ (?: -\d| the\d| -[123456789])-?\d{5} (\d{3}|\*{3})$/; if(Regx.test (ObjValue)) {document.getelementbyidx_x ("Checktel"). innerhtml="<font color= ' #00c72e ' > Phone number entered correctly! </font>"; }Else{document.getelementbyidx_x ("Checktel"). innerhtml="<font color= ' #ff0000 ' > Please enter the correct phone number!</font>"; }} //determine if the email address format is legitimatefunction Check_mail (obj) {varstrm=Obj.value;varREGM =/^[a-za-z0-9_-][email protected][a-za-z0-9_-]+ (\.[ a-za-z0-9_-]+) +$/;//Verify mail regular expression, ^[a-za-z0-9_-]: Must begin with letters, underscores, numbers, if(!Strm.match (REGM)) {document.getelementbyidx_x ("Checkmail"). innerhtml="<font color= ' #ff0000 ' > email address is malformed or contains illegal characters!</font>"; } Else{document.getelementbyidx_x ("Checkmail"). innerhtml="<font color= ' #00c72e ' > email address entered correctly! </font>"; }}//Click button to start detectionfunction Check () {Telphone= Document.getelementbyidx_x ("Telphone"); Mail= Document.getelementbyidx_x ("Mail"); MIMA1= Document.getelementbyidx_x ("MIMA1"); Mima2= Document.getelementbyidx_x ("Mima2"); Secury_mima= Document.getelementbyidx_x ("Secury_mima"); Check_tel (telphone);//Detection PhoneCheck_mail (mail);//Check MailboxCHECK_REPSW (MIMA1,MIMA2);//detect if two passwords are consistentCHECK_PSW (Secury_mima);//detect if the password is legitimate}</script>

JS Registration detection User name, password, mobile phone number, mailbox