<script type="text/javascript">
document.write("Hello World!");
</script>
 

<script type="text/javascript" src="myjs.js"/>
 

<a href='#' onClick="window.alert('salam');">link</a>
 

    *  x.innerHTML - the inner text value of x (a HTML element)
    * x.nodeName - the name of x
    * x.nodeValue - the value of x
    * x.parentNode - the parent node of x
    * x.childNodes - the child nodes of x
    * x.attributes - the attributes nodes of x
 

    *  x.getElementByID(id) - get the element with a specified id
    * x.getElementsByTagName(name) - get all elements with a specified tag name
    * x.appendChild(node) - insert a child node to x
    * x.removeChild(node) - remove a child node from x