function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}
MM_preloadImages('/wp-content/themes/enq/img/topnav/nav_1_f2.gif','/wp-content/themes/enq/img/topnav/nav_2_f2.gif','/wp-content/themes/enq/img/topnav/nav_3_f2.gif','/wp-content/themes/enq/img/topnav/nav_4_f2.gif','/wp-content/themes/enq/img/topnav/nav_5_f2.gif','/wp-content/themes/enq/img/topnav/nav_6_f2.gif','/wp-content/themes/enq/img/btn_signin-over.png', '/wp-content/themes/enq/img/promo_bg-over.png');



function toggleNav(idName) { // manages the rollover behavior of the main horizontal navigation
	var idName1 = ("nav" + idName);
	var idName2 = ("navup" + idName);
	var idName3 = currentNavID;

	if (document.getElementById) { 
		if (document.getElementById(idName1)) { 
			var style1 = document.getElementById(idName1).style; 
		}
		if (document.getElementById(idName2)) {
			var style2 = document.getElementById(idName2).style;
		}
		if (document.getElementById(idName3)) {
			var style3 = document.getElementById(idName3).style;
		}
	}

	if (style1) { 
		style1.zIndex = style1.zIndex? "":"100";
		style1.display = style1.display? "":"block"; 
	}
	if (style2) { 
		style2.top = style2.top? "":"0";
	}
}