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JavaScript Select and deselect all code

Source: Internet
Author: User
Keywords Web page production Ajax javascript
Tags ajax checkbox code document function html javascript name
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<script type= "Text/javascript Tutorial" >

function Checkall (name)
{
var names=document.getelementsbyname (name);
var len=names.length;
if (len>0)
{
var i=0;
for (i=0;i<len;i++)
Names[i].checked=true;

}
}

No choice.
function Checkallno (name)
{
var names=document.getelementsbyname (name);
var len=names.length;
if (len>0)
{
var i=0;
for (i=0;i<len;i++)
Names[i].checked=false;
}
}
</script>

html：

<input type= "checkbox" name= checkbox "value=" checkbox "onclick=" if (this.checked==true) {checkall (' gonggaoid ');} else {checkallno (' gonggaoid ');} />
Select All </label></td>
<input type= "checkbox" Name= "gonggaoid" value= "abc"/>

Method Two

<html>
<head>

<script type= "Text/javascript Tutorial" >

function Checkevent (name,allcheckid)
{
var Allck=document.getelementbyid (Allcheckid);
if (allck.checked==true)
Checkall (name);
Else
Checkallno (name);
All
function Checkall (name)
{
var names=document.getelementsbyname (name);
var len=names.length;
if (len>0)
{
var i=0;
for (i=0;i<len;i++)
Names[i].checked=true;

}
}

No choice.
function Checkallno (name)
{
var names=document.getelementsbyname (name);
var len=names.length;
if (len>0)
{
var i=0;
for (i=0;i<len;i++)
Names[i].checked=false;
}
}

Anti-election
function Reservecheck (name)
{
var names=document.getelementsbyname (name);
var len=names.length;
if (len>0)
{
var i=0;
for (i=0;i<len;i++)
{
if (names[i].checked)
Names[i].checked=false;
Else
Names[i].checked=true;

}
}

}

</script>
</head>

<body>

<input type= "checkbox" id= "Ckall" onclick= "checkevent (' ck ', ' ckall ')"/> Select all
<input type= "checkbox" id= "Ckreserve" onclick= "Reservecheck (' ck ', ' ckreserve ')"/> Reverse
<br/>
<input type= "checkbox" name= "CK" value= "1"/> Basketball
<br/>
<input type= "checkbox" name= "CK" value= "2"/> Tourism
<br/>
<input type= "checkbox" name= "CK" value= "3"/> Reading
<br/>
<input type= "checkbox" name= "CK" value= "4"/> Cuisine
<br/>
<input type= "checkbox" name= "CK" value= "5"/> Sleep
</body></html>

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Related Keywords:
select all checkbox javascript javascript input select all javascript select all elements with class javascript code for select option time and date javascript code calendar code in javascript and html html code with css and javascript
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