Posted By

roberocity on 10/10/06

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InsertAtCursor

/ Published in: JavaScript

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function insertAtCursor(myField, myValue) {
  //IE support
  if (document.selection) {
    myField.focus();
    sel = document.selection.createRange();
    sel.text = myValue;
  }
  //MOZILLA/NETSCAPE support
  else if (myField.selectionStart || myField.selectionStart == '0') {
    var startPos = myField.selectionStart;
    var endPos = myField.selectionEnd;
    myField.value = myField.value.substring(0, startPos)
                  + myValue 
                  + myField.value.substring(endPos, myField.value.length);
  } else {
    myField.value += myValue;
  }
}
 
// calling the function
 
insertAtCursor(document.formName.fieldName, 'this value');

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Posted By: GSharp on February 19, 2010

Very useful, thanks. Found one minor issue, in Firefox 3 the focus is not returned to the field. Here's what I did to focus a place the cursor correctly:

myField.focus(); myField.setSelectionRange(startPos + myValue.length, startPos + myValue.length);

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