JS determines whether it is a number, whether it is an integer, or whether it is a floating-point code

function Checkrate (input) {var re =/^[0-9]+.? [0-9]*$/; Determines whether the string is a number//judgment positive integer/^[1-9]+[0-9]*]*$/if (!re.test (Input.rate.value)) {alert ("Please enter a number (for example: 0.02)"); Input.rate.focus (); Retur ...

JavaScript pops up windows when you close IE window

Here's a JavaScript tutorial for you to close the IE window when the pop-up window is a 24-hour pop-up, of course, you can also customize the pop-up window time Oh. <script language= "JavaScript" > <!--function Setcookie (name,value)//two parameters, one is the name of the cookie, one is the value {var exp = ne ...

JS Regular expression inserts data code at the specified location

JS Regular expression inserts data code at the specified location <! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd "> <html xmlns=" Http://ww ...

JS prohibits copying web page code

JS prohibits copying web page code <! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd "> <html xmlns=" Http://www.jzread ...

JS forced line wrap support Firefox [Firefox] browser

<!doctype HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "http://www.w3.org/tr/xhtml1/dtd/ Xhtml1-transitional.dtd "> <html xmlns=" http://www.jzread.com/1999/...

JavaScript Select and deselect all code

<script type= "Text/javascript Tutorial" > Function checkall (name) {var names=document.getelementsbyname (name);   var len=names.length; if (len>0) {...

JavaScript phone number Fax number legality verification code

Telephone Telephone authentication Code if (document.regform.u_telphone1.value.length==0) | |! Checkifnumber (Document.regform.u_telphone1.value)) {&nbs ...

JavaScript Chinese and authentication authentication program

JavaScript tutorials Chinese with authentication name legality Validator <!doctype HTML Public "-//W3C//DTD XHTML 1.0 transitional//en" "http://www.w3.org/tr/ Xhtml1/dtd/xhtml1-transitional.dtd "> <html xmlns=" HT ...

JavaScript user Registration Password Strength verifier

JavaScript Tutorial User Registration Password Strength Validator <!doctype HTML Public "-//W3C//DTD XHTML 1.0 transitional//en" "http://www.w3.org/tr/ Xhtml1/dtd/xhtml1-transitional.dtd "> <html xmlns=" htt ...

JavaScript Filters HTML Tag code

JavaScript Tutorial Filters HTML tag code <head> <meta http-equiv= "Content-type" content= html; charset=gb2312 "/> <title>javascript tutorial Filters HTML tag code </title> <SCRIPT&NBS ...

JS gets the value of the Drop-down menu to pass to the text box

JS gets the value of the Drop-down menu to the text box <script language= "JavaScript" > <!--function Showtotext () {Document.form_name.textfield_ Name1.value=document.form_name.select_name.value DOCUMENT.FORM_NAME.TEXTF ...

Using onmouseover and onmouseout mouse variables to invoke div background style JS code

JS using onmouseover and onmouseout mouse variable div background style code <html xmlns= "http://www.jzread.com/1999/xhtml" > <head> < Meta http-equiv= "Content-type" content= "HTML; Charset=g ...

JavaScript HTML illegal character filtering and conversion function

JavaScript Tutorial HTML illegal character filtering and conversion functions <html xmlns= "http://www.jzread.com/1999/xhtml" > <head> <meta http-equiv= "Content-type" content= "HTML; charset=gb2312 "...

JavaScript determines whether the specified string is a valid number

<cfoutput> <script type= "Text/javascript Tutorial" > <!--function baseisnotnum (thenum) {//Judge whether it is a number if (Basetrim (thenum) = = "") return true; for (Var i=0;i<thenum ....)

JS get content in the picture address regular expression

JS get content in the picture address regular expression <! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd "> <html xmlns=" http://www ...

Commonly used JavaScript limit input character number code

<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "http://www.jzread.com/TR/xhtml1/DTD/ Xhtml1-transitional.dtd "> <html xmlns=" Http://www.jzread.com/19 ...

JavaScript gets the contents of the specified element of an HTML file

<html> <head> <title> Get the specified elements of the HTML file </title> <script language= "JavaScript" > function GetElement1 () {Alert (document.all ("myH2"). TagName);

JS +css Disable Web page Copy selection feature support Ie/firefox

This is a JS CSS tutorial to prevent Web page copy selection function, support Ie.firefox code Oh, we use for IE <body onselectstart= "return false" > this code to instance For Firefox with CSS to define Oh, *{-moz-user-select:none} Well, crap don't say much, go to try it, can be compatible Ie/firefox OH.

JavaScript ad Delay Loading content method

JavaScript Tutorial ads Delay loading, waiting to load content methods <head> <meta http-equiv= "Content-type" content= "html"; charset=gb2312 "/> <title> Untitled document </title> </head> <body> ....

JS page Pop-up small window, the page background gradually become translucent

<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd "> <html xmlns=" http://www.w3.org/1999/xhtml ...

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