<input type=button value=test onclick="appendTextToObj(document.all.a,'b')">
<textarea name=a style="width:400;height:200;"
onbeforedeactivate="this.setAttribute('lastRange',document.selection.createRange());" rows="1" cols="20" > </textarea>
</body> </html>
<script>
function appendTextToObj(obj,str){
var tempRange=obj.getAttribute('lastRange');
if(tempRange==null) {
tempRange=obj.createTextRange();
tempRange.moveStart("character",obj.value.length);
}
l = tempRange.text.match(/\n/g).length
e = 3+str.length
s = tempRange.text.length -l;
tempRange.text="["+str+"]"+tempRange.text+"[\/"+str+"]";
tempRange.moveEnd("character",-e);
tempRange.moveStart("character",-s);
tempRange.select();
obj.focus();
}
</script>
<textarea name=a style="width:400;height:200;"
onbeforedeactivate="this.setAttribute('lastRange',document.selection.createRange());" rows="1" cols="20" > </textarea>
</body> </html>
<script>
function appendTextToObj(obj,str){
var tempRange=obj.getAttribute('lastRange');
if(tempRange==null) {
tempRange=obj.createTextRange();
tempRange.moveStart("character",obj.value.length);
}
l = tempRange.text.match(/\n/g).length
e = 3+str.length
s = tempRange.text.length -l;
tempRange.text="["+str+"]"+tempRange.text+"[\/"+str+"]";
tempRange.moveEnd("character",-e);
tempRange.moveStart("character",-s);
tempRange.select();
obj.focus();
}
</script>
解决方案 »
免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货