var ipts = document.getElementsByTagName("input");
for(var i=0,j=ipts.lenth;i<j;i++)
if(ipts[i].type=="text"){
ipts[i].onclick=function(){};
// ipts.attachEvent("onclick",fun);
//ipts.addEventListener("click",fun,true|false);
ipts[i].onchange = function(){};
}
for(var i=0,j=ipts.lenth;i<j;i++)
if(ipts[i].type=="text"){
ipts[i].onclick=function(){};
// ipts.attachEvent("onclick",fun);
//ipts.addEventListener("click",fun,true|false);
ipts[i].onchange = function(){};
}
<input type="text" id="input2" class="txt"/>
<script>
window.onload = function(){
var is = document.getElementsByTagName("input");
for (var i=0;i<is.length;i++){
if (is[i].className =="txt"){
is[i].onclick = click;
is[i].onchange = chg;
}
}
}
function gelm(){
if(window.event)return window.event.srcElement;
var f=arguments.callee;
while(caller=f.caller){
f=f.caller
}
return f.arguments[0].target;
}
function click(){
var obj = gelm();
alert(obj.id);
}
function chg(){
var obj = gelm();
alert(obj.value);
}
</script>