DevGuru XHTML Tag: script

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			TAG: script
			<script> ... </script> The script tag is used to place script code inside the head and body elements of an HTML code document. For all practical purposes, this tag is primarily used to allow the execution of JavaScript code inside HTML code (and, to a lesser extent, VBScript). The separate closing tag is mandatory. Attributes and Events charset The charset attribute is used to define the character set that was used to write the script. defer The defer attribute informs the server that the script will not alter the contents of the page on the server-side. This is intended to allow the server to load the page faster. (In JavaScript, this means no document.write statements.) src The src attribute is the URL of a file that contains a script code. This is useful when you need to use repeatedly a long script program. The browser will load and execute the script as a separate file. type The mandatory type attribute is used to define the script language being used. Permitted values include text/css, text/javascript, and text/vbscript. There is no default value. This example uses the script tag to place a JavaScript function in the head element to see if two form fields (firstname and lastname) have been left blank. The form portion of the code is not included, but may be viewed on the form tag page. Code: <?xml version="1.0" encoding="UTF-8"?> <!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" xml:lang="en" lang="en"> <head> <title>DevGuru JavaScript Example</title> <script type="text/javascript"> <!-- function checksubmit() { if (document.formname.firstname.value == "") { alert("Please enter your full name") document.formname.firstname.focus() return false } if (document.formname.lastname.value == "") { alert("Please enter your email address") document.formname.lastname.focus() return false } return true ) --> </script> </head> <body> ... form goes here ... </body> </html> Output: Click to view and test the form in separate window