实现这样一个功能:在新增文章界面上,有论坛自定义表情,用户只要点击某个自定义表情的图标,这个图标对应的UBB代码就会自动添加到文本框的光标位置。这个功能在IE浏览器上运行一直是正常的,但是现在在Chrome浏览器上却出现了问题。点击图标时,不会将UBB代码添加到文本框中,运行Chrome调试器时提示 "cannot read property 'SetselectionRange‘ of null"代码如下:
<script type="text/javascript">
function ins(insertStr)
{
var obj = document.getElementById("c_message_content")
if(document.all)
{
obj.focus();
var range = document.selection.createRange();
range.text=insertStr;
}
else if(obj.setSelectionRange){
var rangeStart = obj.selectionStart;
var rangeEnd = obj.selectionEnd;
var temp1 = obj.value.substring(0,rangeStart);
var temp2 = obj.value.substring(rangeEnd);
obj.value = temp1 + insertStr + temp2;
}
}function ShowTR(obj){
//document.write(HiddenTR1);
//TargetTR=document.all("HiddenTR"+o);
/*if (document.getElementById("HiddenTR1").style.display=='none'){
document.getElementById("HiddenTR1").style.display='block';
}else{
document.getElementById("HiddenTR1").style.display='none';
}*/
var o1=document.getElementById("HiddenTR1")
var o2=document.getElementById("HiddenTR2")
if ((o1.style.display=='block')||(o2.style.display=='block')){
o1.style.display='none';
o2.style.display='none';
document.getElementById("Hiddentxt").innerHTML='';
}else{
o1.style.display='block';
document.getElementById("Hiddentxt").innerHTML='悠嘻猴';
}
//o.style.display=o.style.display=='none'?'block':'none';
obj.innerHTML=obj.innerHTML=='不显示发帖表情'?'显示发帖表情':'不显示发帖表情' }
function ShowTR1(obj){
//document.write(HiddenTR1);
//TargetTR=document.all("HiddenTR"+o);
/*if (document.getElementById("HiddenTR1").style.display=='none'){
document.getElementById("HiddenTR1").style.display='block';
}else{
document.getElementById("HiddenTR1").style.display='none';
}*/
var o1=document.getElementById("HiddenTR1")
var o2=document.getElementById("HiddenTR2")
//alert("aaa");
if (o1.style.display=='block'){
o1.style.display='none';
o2.style.display='block';
}else if (o1.style.display=='none'){
o1.style.display='block';
o2.style.display='none';
}
//o.style.display=o.style.display=='none'?'block':'none';
obj.innerHTML=obj.innerHTML=='可爱猫'?'悠嘻猴':'可爱猫'; }
</script>浏览器脚本chromejavascript论坛
<script type="text/javascript">
function ins(insertStr)
{
var obj = document.getElementById("c_message_content")
if(document.all)
{
obj.focus();
var range = document.selection.createRange();
range.text=insertStr;
}
else if(obj.setSelectionRange){
var rangeStart = obj.selectionStart;
var rangeEnd = obj.selectionEnd;
var temp1 = obj.value.substring(0,rangeStart);
var temp2 = obj.value.substring(rangeEnd);
obj.value = temp1 + insertStr + temp2;
}
}function ShowTR(obj){
//document.write(HiddenTR1);
//TargetTR=document.all("HiddenTR"+o);
/*if (document.getElementById("HiddenTR1").style.display=='none'){
document.getElementById("HiddenTR1").style.display='block';
}else{
document.getElementById("HiddenTR1").style.display='none';
}*/
var o1=document.getElementById("HiddenTR1")
var o2=document.getElementById("HiddenTR2")
if ((o1.style.display=='block')||(o2.style.display=='block')){
o1.style.display='none';
o2.style.display='none';
document.getElementById("Hiddentxt").innerHTML='';
}else{
o1.style.display='block';
document.getElementById("Hiddentxt").innerHTML='悠嘻猴';
}
//o.style.display=o.style.display=='none'?'block':'none';
obj.innerHTML=obj.innerHTML=='不显示发帖表情'?'显示发帖表情':'不显示发帖表情' }
function ShowTR1(obj){
//document.write(HiddenTR1);
//TargetTR=document.all("HiddenTR"+o);
/*if (document.getElementById("HiddenTR1").style.display=='none'){
document.getElementById("HiddenTR1").style.display='block';
}else{
document.getElementById("HiddenTR1").style.display='none';
}*/
var o1=document.getElementById("HiddenTR1")
var o2=document.getElementById("HiddenTR2")
//alert("aaa");
if (o1.style.display=='block'){
o1.style.display='none';
o2.style.display='block';
}else if (o1.style.display=='none'){
o1.style.display='block';
o2.style.display='none';
}
//o.style.display=o.style.display=='none'?'block':'none';
obj.innerHTML=obj.innerHTML=='可爱猫'?'悠嘻猴':'可爱猫'; }
</script>浏览器脚本chromejavascript论坛
对象不存在咯