function cssJsMenu(elemId) {
  if (document.getElementById(elemId)) {
    var navroot = document.getElementById(elemId);
    var lis=navroot.getElementsByTagName("LI");

    for (i=0; i<lis.length; i++) {
      for (j=0; j<lis[i].getElementsByTagName("UL").length; j++) {
        lis[i].onmouseover = function() {
			this.getElementsByTagName("UL")[j].style.visibility = 'visible';
			// hide drop down boxes if interet explorer...menu goes behind them.
			if (document.getElementById('main1')) {
				var main1 = document.getElementById('main1');
				main1.style.visibility="hidden";
			}
			if (document.getElementById('cat1')) {
				var cat1 = document.getElementById('cat1');
				cat1.style.visibility="hidden";
			}
			if (document.getElementById('size')) {
				var map_size = document.getElementById('size');
				map_size.style.visibility="hidden";		
			}
        }

        lis[i].onmouseout = function() {
			this.getElementsByTagName("UL")[j].style.visibility = 'hidden';
		  	if (document.getElementById('main1')) {
				var main1 = document.getElementById('main1');
				main1.style.visibility="visible";
			}
			if (document.getElementById('cat1')) {
				var cat1 = document.getElementById('cat1');
				cat1.style.visibility="visible";
			}
			if (document.getElementById('size')) {
				var map_size = document.getElementById('size');
				map_size.style.visibility="visible";		
			}
        }
      }
    }
  }
}