Phiên bản đầy đủ: jsB@nk » Biểu mẫu » Hạn chế » Kiểm tra dữ liệu trước khi submit
URL: https://www.javascriptbank.com/validation-guestbook.html
Một đoạn mã JavaScript khác để tạo hiệu ứng kiểm tra các khung nhập liệu do người dùng nhập vào.
Phiên bản đầy đủ: jsB@nk » Biểu mẫu » Hạn chế » Kiểm tra dữ liệu trước khi submit
URL: https://www.javascriptbank.com/validation-guestbook.html
<SCRIPT LANGUAGE="JavaScript"><!-- Beginvar emailAddress="youremailaddress";function toName() {var toNameval=document.forms[0].elements[1].value;toNameval = "mailto:youre-mailaddress.com?subject=Guest Book example";this.document.mail.action = toNameval;}function Reset() {document.forms[0].elements[0].value = "";document.forms[0].elements[1].value = "";document.forms[0].elements[2].value = navigator.appName + " " + navigator.appVersion; document.forms[0].elements[3].value = "";document.forms[0].elements[4].value = "";document.forms[0].elements[5].value = "";document.forms[0].elements[0].focus();}function submitForms() {if ( (isName() ) && (isEmail()) && (isBrowser()) && (isCountry()) && (isComment()) && (isFavorite()) )if (confirm("\nYou're about to e-mail the form.\n\nClick on YES to submit.\n\nClick on NO to abort.")){ alert("\nYour submission will now be made to :\n\n"+emailAddress+"\n\n\nThank you!");return true;}else{alert("\nYou have chosen to abort the submission.");return false; }elsereturn false;}function isName() {var str = document.forms[0].elements[0].value;if (str == "") {alert("\nThe NAME field is blank.\n\nPlease enter your name.")document.forms[0].elements[0].focus();return false;}for (var i = 0; i < str.length; i++) {var ch = str.substring(i, i + 1);if (((ch < "a" || "z" < ch) && (ch < "A" || "Z" < ch)) && ch != ' ') {alert("\nThe NAME field only accepts letters & spaces.\n\nPlease re-enter your name.");document.forms[0].elements[0].select();document.forms[0].elements[0].focus();return false; }}return true;}function isEmail(){emailAddress=document.forms[0].elements[1].value;if (document.forms[0].elements[1].value == "") {alert("\nThe E-MAIL field is blank.\n\nPlease enter your e-mail address.")document.forms[0].elements[1].focus();return false; }if (document.forms[0].elements[1].value.indexOf ('@',0) == -1 || document.forms[0].elements[1].value.indexOf ('.',0) == -1){alert("\nThe E-MAIL field requires a \"@\" and a \".\"be used.\n\nPlease re-enter your e-mail address.")document.forms[0].elements[1].select();document.forms[0].elements[1].focus();return false;}else{toName();return true;}}function isBrowser(){if (document.forms[0].elements[2].value != navigator.appName + " " + navigator.appVersion){if (confirm("\nYou've changed your browser type.\n\nClick on OK to keep changes.\n\nClick on Cancel to restore detected browser.")) return trueelse{document.forms[0].elements[2].value = navigator.appName + " " + navigator.appVersion;return true; }}elsereturn true;}function isCountry() {var str = document.forms[0].elements[3].value;if (str == "") {alert("\nThe COUNTRY field is blank.\n\nPlease enter your country.")document.forms[0].elements[3].focus();return false;}for (var i = 0; i < str.length; i++) {var ch = str.substring(i, i + 1);if (((ch < "a" || "z" < ch) && (ch < "A" || "Z" < ch)) && ch != ' ') {alert("\nThe COUNTRY field only accepts letters & spaces.\n\nPlease re-enter your country.");document.forms[0].elements[3].select();document.forms[0].elements[3].focus();return false; }}return true;}function isComment() {if (document.forms[0].elements[4].value == "") {if (confirm("\nYou're about to submit without leaving a comment.\n\nClick on CANCEL to include a comment.\n\nClick on OK to continue without a comment.")) return trueelse{document.forms[0].elements[4].focus();return false; }}elsereturn true }function isFavorite() {if (document.forms[0].elements[5].value == "") {if (confirm("\nYou're about to submit without listing your favorite sites.\n\nClick on CANCEL to include favorites.\n\nClick on OK to continue without listing favorites.")) return trueelse{document.forms[0].elements[5].focus();return false; }}elsereturn true }// End --></SCRIPT><!-- This script downloaded from www.JavaScriptBank.com Come to view and download over 2000+ free javascript at www.JavaScriptBank.com--><BODY onLoad="Reset()"><FORM ENCTYPE="text/plain" NAME="mail" METHOD='GET' ACTION='mailto:youremailaddress' onSubmit="return submitForms()"><TABLE BORDER=0 WIDTH=400><TR><TD align="center"> <FONT COLOR=800000><STRONG>Enter your name:</STRONG></FONT></TD><TD align="center"> <FONT COLOR=800000><STRONG>Enter your e-mail address:</STRONG></FONT></TD></TR><TR><TD align="center"> <INPUT TYPE="text" NAME="name" SIZE=30 MAXLENGTH=40 ></TD></TD><TD align="center"> <INPUT TYPE="text" NAME="email" SIZE=30 MAXLENGTH=40 ></TD></TR><TR><TD align="center"> <FONT COLOR=800000><STRONG>Your browser </STRONG></FONT></TD><TD align="center"> <FONT COLOR=800000><STRONG>Enter your country:</STRONG></FONT></TD></TR><TR><TD align="center"> <INPUT TYPE="text" NAME="browser" SIZE=30 MAXLENGTH=60></TD><TD align="center"> <INPUT TYPE="text" NAME="country" SIZE=30 MAXLENGTH=60></TD></TR></TABLE><CENTER> <FONT COLOR=800000><STRONG>Leave a comment or suggestion:</strong> </font><BR><TEXTAREA NAME="comments" ROWS=5 COLS=50 wrap=yes>Comments? Suggestions?</TEXTAREA><P><P><FONT COLOR=800000><STRONG>List your favorite sites:</STRONG></FONT><BR><TD align="center"><TEXTAREA NAME="favorites" ROWS=5 COLS=50 wrap=yes>Any sites I should take a look at?</TEXTAREA><P><P><INPUT TYPE="submit" VALUE="Submit"><center><INPUT TYPE="reset" VALUE="Reset" onClick="Reset()"></FORM></BODY><!-- This script downloaded from www.JavaScriptBank.com Come to view and download over 2000+ free javascript at www.JavaScriptBank.com-->