about setting the OnLoad event handle with a script
<body> <script> document.body.onload=function () {alert ("!")} </script> </body>
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In IE, opera are normal and effective, but FF neither execute nor error, because in ff,document.body.onload is undefined (undefined), a function to assign value to undefined neither what happened, nor error.
This is written in IE, opera, and FF:
<body> <script> window.onload=function () {alert ("!")} </script> </body>
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about binding event handles with scripts
IE under the use of attachevent, FF AddEventListener
The relevant discussions are as follows:
Http://search.blueidea.com/?q=addEventListener&bisearch=bbs
(basically see a few stickers to understand, I do not say in detail.) Please do not top the old stickers, thank you.
Reference Links:
Http://bbs.blueidea.com/viewthre ... p;page=1#pid2248824
http://bbs.blueidea.com/viewthread.php?tid=2507914
about floating code and Documentelement/body
It is often asked why the floating AD/couplet code is not available under XHTML 1.1 DTD file Header/FF
This is because, by standard, the scroll bar of the form we see should not be the body, but the HTML (that is, the Document.documentelement object).
So the solution is to transform Document.body.scrollTop or similar code into DOCUMENT.DOCUMENTELEMENT.SCROLLTOP in previously non-standard code
references to IDs and HTML object elements
The cause of the problem is very, very much. But a basic prerequisite is that for IE, an HTML element ID can be used directly in the script as a variable name, but not in FF.
Copy Code code as follows:
<input id= "T1" ><input type= "button" value= "click Me" onclick= "alert (t1.value)" >
Copy Code code as follows:
<input id= "T1" ><input type= "button" value= "click Me" onclick= "alert (document.getElementById (' T1 '). Value)" >
About usage differences for event objects
In IE, when an event is fired, there is a global window.event object that holds the information about the event
IE only
<input type= "button" onclick= "alert (event.type)" onfocus= "alert (event.type)" >
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FF, when an event is fired, a local event object is passed as the first argument to the event handler function
FF only
<input type= "button" onclick= "alert (arguments[0].type)" onfocus= "alert (arguments[0].type)" >
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In addition, IE's event object and FF's event object are slightly different.
Here are my common forms of compatibility
<script> function Doevent (e) {var e=window.event?window.event:e; var srcele=e.srcelement?e.srcelement:e.target; alert (Srcele.value); } </script> <input value= "Click Me" onclick= "doevent (Arguments[0]);"/>
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Reference
Http://bbs.blueidea.com/thread-2667939-1-1.html
