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JavaScript uses style name classname to get corresponding objects

Source: Internet
Author: User
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The code is as follows Copy Code

<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
<meta http-equiv= "Content-type" content= "text/html; Charset=utf-8 "/>
<style type= "Text/css" >
* Reset Style * *
* {margin:0; padding:0;}
. input_ocurrent {padding:2px; border:1px solid #DDD; background: #FFF;}
. Input_ocurrent:hover,. input_ocurrent:focus {border:1px solid #444; background: #DDD;}
. input_current {padding:2px; border:1px solid #444; background: #DDD;}
</style>
<script type= "Text/javascript" >
function Displayinput (elementid) {
Get a collection of span labels
var spanzone = document.getElementsByTagName ("span");
Gets the number of span tags (which are repeated in a for)
var spanlength=spanzone.length;
var inputzone;//the span that you need
for (Var i=0;i<spanlength;i++)
{
To get the one you're looking for.
if (Spanzone[i].classname==elementid)
{
Inputzone=spanzone[i];
}
}
Get the input tag collection for the span label
var inputtx=inputzone.getelementsbytagname ("input");
Number of sets of input in span (separate write to prevent repeat calculation)
var inputlength=inputtx.length;
for (var i=0;i <inputLength; i++) {
Dynamically adding onmouseover events: When the mouse is moved to the input to determine if this Inpu class is input_ocurrent if yes, add onmouseover event to remove the same
if (Inputtx[i].classname = = "Input_ocurrent") {
Inputtx[i].onmouseover=function () {
This.classname = "Input_current";
}
Inputtx[i].onmouseout=function () {
This.classname = "Input_ocurrent";
}
}
}
}
Window.onload =function () {
Displayinput ("Input_zone");
}
</script>
<body>
<span class= "Input_zone" >
<input class= "input_ocurrent" name= "type=" text "size=" "/>"
<input class= "input_ocurrent" name= "type=" text "size=" "/>"
</span>
</body>

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