if (this.doc.body.hasChildNodes()) {
var cursor = this.getRange(), selection, node;
if (this.W3CRange) {
selection = this.getSelection();
node = cursor.commonAncestorContainer;
cursor.selectNode(node); //이 부분에서 오류가 납니다.
cursor.collapse(false);
selection.removeAllRanges();
selection.addRange(cursor);
}
else {
node = this.doc.body.firstChild;
if (node.nodeType === GB.node.text) {
node = node.parentNode;
}
cursor.moveToElementText(node);
cursor.collapse(false);
cursor.select();
}
}