<!DOCTYPE HTML>
<html>
<head>
<title>yugi</title>
<meta charset=UTF-8 />
<style type="text/css">
</style>
<scrip...
<!DOCTYPE HTML>
<html>
<head>
<title>yugi</title>
<meta charset=UTF-8 />
<style type="text/css">
</style>
<script type="text/javascript">
var LInserter =
{
start : 0,
end : 0,
isIE : function ()
{
return (!!window.ActiveXObject);
},
getPos : function (obj, whichone)
{
var me = LInserter;
var pos = 0;
var dir = whichone == "start" ? "StartToStart" : "StartToEnd";
if (me.isIE ())
{
var rangeSelection = document.selection.createRange ();
if (rangeSelection.parentElement ().id == obj.id)
{
if (obj.tagName.toLowerCase () == 'textarea')
{
var rangeBody = document.body.createTextRange ();
rangeBody.moveToElementText (obj);
}
else
{
var rangeBody = obj.createTextRange ();
}
for (pos = 0; rangeBody.compareEndPoints (dir, rangeSelection) < 0; pos++)
{
rangeBody.moveStart ("character", 1);
}
for ( var i = 0; i <= pos; i++)
{
if (obj.value.charAt (i) == "\n")
{
pos++;
}
}
return (pos = whichone == "start" ? (me.start = pos) : (me.end = pos));
}
}
else
{
return (pos = whichone == "start" ? (me.start = obj.selectionStart) : (me.end = obj.selectionEnd));
}
},
insert : function (obj, params)
{
var me = LInserter;
obj.value = obj.value.substring (0, me.start) + params + obj.value.substr (me.start);
return obj.value;
}
};
</script>
</head>
<body>
<a href="javascript:;" onclick="LInserter.insert(document.getElementById('conet'), '我我我我我我我我');">点我</a>
<a href="javascript:;" onclick="LInserter.insert(document.getElementById('conet'), '他他他他他他他');">点他</a>
<textarea name="conet" id="conet" rows="14" cols="50" style="resize:none;" onmouseup="LInserter.getPos(this, 'start');"></textarea>
</body>
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