/* JavaScript Bible, Fourth Edition by Danny Goodman
John Wiley & Sons CopyRight 2001 */
<HTML> <HEAD> <TITLE>appendChild(), removeChild(), and replaceChild() Methods</TITLE> <SCRIPT LANGUAGE="JavaScript"> function append(form) { if (form.input.value) { var newItem = document.createElement("LI") newItem.appendChild(document.createTextNode(form.input.value)) document.getElementById("myUL").appendChild(newItem) } } function replace(form) { if (form.input.value) { var newItem = document.createElement("LI") var lastChild = document.getElementById("myUL").lastChild newItem.appendChild(document.createTextNode(form.input.value)) document.getElementById("myUL").replaceChild(newItem, lastChild) } } function restore() { var oneChild var mainObj = document.getElementById("myUL")
while (mainObj.childNodes.length > 2) { oneChild = mainObj.lastChild mainObj.removeChild(oneChild) } } </SCRIPT> </HEAD> <BODY> <H1>Child Methods</H1> <HR> Here is a list of items: <UL ID="myUL"><LI>First Item <LI>Second Item </UL> <FORM> Enter some text to add/replace in the list: <INPUT TYPE="text" NAME="input" SIZE=30><BR> <INPUT TYPE="button" VALUE="Append to List" onClick="append(this.form)"> <INPUT TYPE="button" VALUE="Replace Final Item" onClick="replace(this.form)"> <INPUT TYPE="button" VALUE="Restore List" onClick="restore()"> </BODY> </HTML>
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