How to create self enclosing element javascript XML DOM?

I want to create element like,

<Object name="object name" value="object value" />

but every time i end up with

<Object name="object name" value="object value"></Object>

I am using this code piece

parser = new DOMParser();
xmlDoc = parser.parseFromString(text, "text/xml");
newel = xmlDoc.createElement("Object");
x=xmlDoc.getElementsByTagName("Page")[0];
x.appendChild(newel);

Any suggestions?