<script>    function a(){        alert("a");    }    function b(){        alert("b");    }    var arr = [];    function addEvent(o,f){        o.blur=f();        var n = arr.length;        while(n--){            if(arr[n]==f) return;        }        arr.push(f);    }    function Run(){        for(var i=0;i<arr.length;i++){            arr[i]();        }    }</script><input type="text" value="123" onblur="addEvent(this,a)" /><input type="text" value="456" onblur="addEvent(this,b)" /><input type="button" value="T" onclick="Run()" />