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tooby
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屏蔽ctrl组合键

 
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<!DOCTYPE html>
<html>
<!--
  Created using jsbin.com
  Source can be edited via http://jsbin.com/igaxax/14/edit
-->
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>


<meta charset=utf-8 />
<title>JS Bin</title>

<style id="jsbin-css">
.kkk{
    border: 10px solid black;
}
</style>
</head>
<body>
<input type="text" name="aaa" id="aaa"/>
<input type="text" name="bbb" id="bbb"/>
<input type="text" name="ccc" id="ccc"/>
<input type="text" name="ddd" id="ddd"/>

<script language="javascript"> 

function disableCtrlKeyCombination(e)
{
    //list all CTRL + key combinations you want to disable
    var forbiddenKeys = new Array('f', 'n', 'c', 'x', 'v', 'j');
    var key;
    var isCtrl;

    if(window.event)
    {
        key = window.event.keyCode;     //IE
        if(window.event.altKey)
                        isCtrl = true;
                else
                        isCtrl = false;
    }
    else
    {
        key = e.which;     //firefox
        if(e.altKey)
            isCtrl = true;
        else
            isCtrl = false;
    }

    //if ctrl is pressed check if other key is in forbidenKeys array
    if(isCtrl)
    {
        for(i=0; i<forbiddenKeys .length; i++)
        {
            //case-insensitive comparation
            if(forbiddenKeys[i].toLowerCase() == String.fromCharCode(key).toLowerCase())
            {
                alert('Key combination CTRL + '
                    +String.fromCharCode(key)
                    +' has been disabled.');
                return false;
            }
        }
    }
    return true;
}


    $(document).keydown(disableCtrlKeyCombination); 
</script>
</body>
</html>

 

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