/* Shared JS fucntions for Culham site */

/* The core pages in the site use a conditional comment for IE to call this JS file once the DOM is loaded so that
the hover behaviour is added to the CSS pop-down menu:

<!--[if IE]>
  <script defer src="../../../culham_shared.js"></script>
<![endif]-->

*/


/* Functions to add rollovers to the Culham top-bar menu */
function IEHoverPseudo() { // add hover functionality in IE
	var navItems = document.getElementById("primary-nav").getElementsByTagName("li");
	for (var i=0; i<navItems.length; i++) {
		if(navItems[i].className == "menuparent") {
			navItems[i].onmouseover=function() { this.className += " over"; }
			navItems[i].onmouseout=function() { this.className = "menuparent"; }
		}
	}
}

function init() {
	if(document.all) { // test for IE browsers
		IEHoverPseudo(); // call IE hover script
	}
}

init(); // call init function