The implementation code for inserting a string at the cursor is compatible with IE and Firefox_javascript skills

Copy code The code is as follows:

// Insert string at the cursor
// myField text Box object
//The value to be inserted
function insertAtCursor(myField, myValue)
{
//IE support
if (document.selection)
{
myField. focus();
sel = document.selection.createRange();
sel.text = myValue;
sel.select();
}
//MOZILLA/NETSCAPE support
else if (myField.selectionStart || myField.selectionStart == '0')
{
var startPos = myField.selectionStart;
var endPos = myField.selectionEnd;
// save scrollTop before insert
var restoreTop = myField.scrollTop;
myField.value = myField.value.substring(0, startPos) myValue myField.value.substring(endPos,myField.value.length);
if (restoreTop > 0)
{
// restore previous scrollTop
myField.scrollTop = restoreTop;
}
myField.focus();
myField.selectionStart = startPos myValue.length;
myField.selectionEnd = startPos myValue.length;
} else {
myField.value = myValue;
myField.focus();
}
}

The following is the Script House demo code:

<form> <textarea id="demo" style="width:500px; height:300px"> Position the mouse anywhere here and click the button below to test the effect <input type="button" onclick="insertAtCursor(document.getElementById('demo'),"脚本之家")" value="脚本之家" id="Button1"> <input type="button" onclick="insertAtCursor(document.getElementById('demo'),"jb51.net")" value="jb51.net" id="Button2">
[Ctrl A select all Note: If you need to introduce external Js, you need to refresh to execute

]<script> // 在光标处插入字符串 // myField 文本框对象 // 要插入的值 function insertAtCursor(myField, myValue) { //IE support if (document.selection) { myField.focus(); sel = document.selection.createRange(); sel.text = myValue; sel.select(); } //MOZILLA/NETSCAPE support else if (myField.selectionStart || myField.selectionStart == '0') { var startPos = myField.selectionStart; var endPos = myField.selectionEnd; // save scrollTop before insert var restoreTop = myField.scrollTop; myField.value = myField.value.substring(0, startPos) + myValue + myField.value.substring(endPos,myField.value.length); if (restoreTop > 0) { // restore previous scrollTop myField.scrollTop = restoreTop; } myField.focus(); myField.selectionStart = startPos + myValue.length; myField.selectionEnd = startPos + myValue.length; } else { myField.value += myValue; myField.focus(); } } </script>