function top_nav_1(){
	document.getElementByTagName("top_nav_1").style.left = '0px';
}

// JavaScript Document

startList = function() {
navRoot = document.getElementById("nav");
    for (i=0; i<navRoot.childNodes.length; i++) {
    node = navRoot.childNodes[i];
        if (node.nodeName=="LI") {
            node.onmouseover=function() {
                this.className+=" over";
                turn_off('middle_content')
            }
            node.onmouseout=function() {
                this.className=this.className.replace(" over", "");
                turn_on('middle_content')
            }
        }
    }
}