In IE8, declaring a document type is more strictly like the following code.
Operating environment: <input type= ' text ' name= ' os ' value= ' Windows platforms '/> <script type= ' text/javascript ' > function Osdo (str) {document.getElementById ("OS"). Value=str; } </script> <input name= "ostmp" type= "Radio" value= "onclick=" osdo (")"/> Empty <input nam E= "Ostmp" type= "Radio" value= "Windows platform onclick=" OSDO (' Windows platform ') "/> Windows platform <input name=" ostmp "type=" Radio "value=" "onclick=" osdo (' s60v2 ') "/>s60v2 <input name=" ostmp "type=" Radio "value=" "onclick=" osdo (' S60v3 ') "/>s60v3 <input name=" ostmp "type=" Radio "value=" "onclick=" (' CHM ') "Osdo/>chm <input" name= "Ostmp" Ra Dio "value=" "onclick=" osdo (' PDF ') "/>pdf <input name=" ostmp "type=" Radio "value=" "onclick=" osdo (' PPT ') "/>" PPT <input name= "ostmp" type= "Radio" value= "onclick=" osdo (' DOC ') "/>word <input name=" ostmp "type=" Radio "Val Ue= "" onclick= "osdo (' EXCEL ')"/>excel <input name= "Ostmp" Type= "Radio" value= "onclick=" osdo (' asp ') "/>asp <input name=" ostmp "type=" Radio "value=" "onclick=" osdo (' asp+ Access ') "/>asp+access <input name=" ostmp "type=" Radio "value=" "onclick=" osdo (' Asp+sqlserver ')/>asp+ SQL Server <input name= "ostmp" type= "Radio" value= "onclick=" osdo (' asp+sql/access ') "/> Asp+sql/access < strong>php source </strong> <input name= "ostmp" type= "Radio" value= "onclick=" osdo (' php ')/>php Name= "Ostmp" type= "Radio" value= "onclick=" osdo (' php+mysql ') "/> Php+mysql<input" name= "ostmp" type= " Value= "" onclick= "osdo (' jsp ')"/>jsp <strong>asp.net source </strong> <input name= "ostmp" type= "Radio" Value= "onclick=" osdo (' asp.net ') "/>asp.net <input name=" ostmp "type=" Radio "value=" "onclick=" osdo (' asp.net+ Access ') "/>asp.net+access <input name=" ostmp "type=" Radio "value=" "onclick=" osdo (' Asp.net+sql ')/>asp.net +sql <input name= "ostmp" type= "Radio" value= "onclick=" osdo (' asP.net+sql/access ') "/>asp.net+sql/access
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You can see that this code can be run in both IE7 and IE8, and the following code we add to the Declaration document
Copy Code code as follows:
<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
Added the document type declaration above.
<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd "> Operating Environment: <input type= ' text ' name= ' os ' value= ' Windows platform '/> <script" type= "> function Osdo (str) {document.getElementById ("OS"). Value=str; } </script> <input name= "ostmp" type= "Radio" value= "onclick=" osdo (")"/> Empty <input nam E= "Ostmp" type= "Radio" value= "Windows platform onclick=" OSDO (' Windows platform ') "/> Windows platform <input name=" ostmp "type=" Radio "value=" "onclick=" osdo (' s60v2 ') "/>s60v2 <input name=" ostmp "type=" Radio "value=" "onclick=" osdo (' S60v3 ') "/>s60v3 <input name=" ostmp "type=" Radio "value=" "onclick=" (' CHM ') "Osdo/>chm <input" name= "Ostmp" Ra Dio "value=" "onclick=" osdo (' PDF ') "/>pdf <input name=" ostmp "type=" Radio "value=" "onclick=" osdo (' PPT ') "/>" PPT <input name= "ostmp" type= "Radio" value= "" onclick="Osdo (' DOC ')"/>word <input name= "ostmp" type= "Radio" value= "onclick=" osdo (' EXCEL ') "/>excel <input "Ostmp" type= "Radio" value= "onclick=" osdo (' asp ') "/>asp <input name=" ostmp "type=" Radio "value=" "onclick=" osdo (' asp+access ') "/>asp+access <input name=" ostmp "type=" Radio "value=" "onclick=" osdo (' Asp+sqlserver ')/>asp +sqlserver <input name= "ostmp" type= "Radio" value= "" onclick= "osdo (' asp+sql/access ')"/> Asp+sql/access < strong>php source </strong> <input name= "ostmp" type= "Radio" value= "onclick=" osdo (' php ')/>php Name= "Ostmp" type= "Radio" value= "onclick=" osdo (' php+mysql ') "/> Php+mysql<input" name= "ostmp" type= " Value= "" onclick= "osdo (' jsp ')"/>jsp <strong>asp.net source </strong> <input name= "ostmp" type= "Radio" Value= "onclick=" osdo (' asp.net ') "/>asp.net <input name=" ostmp "type=" Radio "value=" "onclick=" osdo (' asp.net+ Access ') '/>asp.net+access <input name= ' ostmp ' TypE= "Radio" value= "onclick=" osdo (' Asp.net+sql ') "/>asp.net+sql <input name=" ostmp "type=" Radio "value=" "onclick = "OSDO (' asp.net+sql/access ')"/>asp.net+sql/access
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Discovery prompts document.getElementById (...) as null or not an object solution
If the page has a document declaration, because the div+css layout, the sound does not declare the document, some parts of the page are not the same.
You can add the following code to the head
Copy Code code as follows:
<meta http-equiv= "x-ua-compatible" content= "Ie=emulateie7"/>
The complete code
<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd "> <meta http-equiv=" x-ua-compatible "content=" ie=emulateie7 "/> Operating Environment: <input type= ' text ' name= ' OS ' value= ' Windows platform '/> <script type= ' text/javascript ' > function osdo (str) {document. getElementById ("OS"). Value=str; } </script> <input name= "ostmp" type= "Radio" value= "onclick=" osdo (")"/> Empty <input nam E= "Ostmp" type= "Radio" value= "Windows platform onclick=" OSDO (' Windows platform ') "/> Windows platform <input name=" ostmp "type=" Radio "value=" "onclick=" osdo (' s60v2 ') "/>s60v2 <input name=" ostmp "type=" Radio "value=" "onclick=" osdo (' S60v3 ') "/>s60v3 <input name=" ostmp "type=" Radio "value=" "onclick=" (' CHM ') "Osdo/>chm <input" name= "Ostmp" Ra Dio "value=" "onclick=" osdo (' PDF ') "/>pdf <input the Name=" ostmp "type=" Radio "value=" "onclick=" osdo ('PPT ') "/>ppt <input name=" ostmp "type=" Radio "value=" "onclick=" osdo (' DOC ') "/>word <input" name= "type = "Radio" value= "onclick=" osdo (' EXCEL ') "/>excel <input name=" ostmp "type=" Radio "value=" "onclick=" osdo (' ASP ') "/>asp <input name=" ostmp "type=" Radio "value=" "onclick=" osdo (' asp+access ') "/>asp+access <input name=" os TMP "type=" Radio "value=" "onclick=" osdo (' Asp+sqlserver ') "/>asp+sqlserver <input name=" ostmp "type=" Radio " Value= "" onclick= "osdo (' asp+sql/access ')"/> asp+sql/access source </strong> <strong>php <input " Ostmp "type=" Radio "value=" "onclick=" osdo (' php ') "/>php <input name=" ostmp "type=" Radio "value=" "onclick=" OSDO ( ' Php+mysql ') "/> php+mysql<input name=" ostmp "type=" Radio "value=" "onclick=" osdo (' jsp ') "/>jsp <strong >asp.net source </strong> <input name= "ostmp" type= "Radio" value= "" onclick= "osdo (' asp.net ')"/>asp.net < Input name= "ostmp" type= "Radio" value= "" onclick= "OSDO (' asp.net+access ') "/>asp.net+access <input name=" ostmp "type=" Radio "value=" "onclick=" osdo (' Asp.net+sql ') "/>asp.net+sql <input name=" ostmp "type=" Radio "value=" "onclick=" osdo (' asp.net+sql/access ')/>asp.net+sql /access
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