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function setoverflown(s){ var retcode = false; if ( $z("#nav").is(":hover") || ! $z("#nav > ul > li").length ){ // mouse is over nav, which opens submenues and might cause the overflow // OR empty nav - needed because for IE an empty #nav == overflown() return false; } $z("#nav > ul").removeClass("overflown"); if ( $z("#nav:not(.on) > ul").overflown() ){ // nav is already overflown by 1st-Level Menu entries (too many entries) $z("#nav > ul").addClass("overflown"); retcode = true; } else{ // on non touch devices, check if nav would be overflown horizontally if all submenues are visible (i.e. too many submenues expanding to the right) $z("#nav > ul ul:not(.nocalcoverflow)").css("display", "block"); if ( $z("#nav:not(.on) > ul").overflown("x") ){ $z("#nav > ul").addClass("overflown"); retcode = true; } $z("#nav > ul ul:not(.nocalcoverflow)").css("display", ""); // if the previous check didn't already match, check if one of the submenus is higher than the available space in the window because the nav is fixed and wouldn't scroll if ( !retcode && $z("#nav.fixed").length ){ $z("#nav.fixed > ul ul:not(.nocalcoverflow)").css("display", "block"); $z("#nav.fixed > ul ul:not(.nocalcoverflow)").each(function(){ var eltop = $z(this).offset().top - $(window).scrollTop(); // gets the effective top position relative to the window if ( (eltop + $(this).innerHeight()) > $z(window).innerHeight() ){ // submenu doesn't fit on screen and would be cut off $z("#nav.fixed > ul").addClass("overflown"); retcode = true; $z("#nav.fixed > ul ul:not(.nocalcoverflow)").css("display", ""); // exit the each loop early return false; } }); $z("#nav.fixed > ul ul:not(.nocalcoverflow)").css("display", ""); } } // see if we need to scale to the logo to fit besides the mobile menu-button var availspace = $z("#nav > ul").width() - $z("#nav > ul > li.overflownonly").width(); $z("#nav > ul > li.logo").css("max-width", availspace + "px"); return retcode; } function stickyNav(topoffset){ var scrolltop = $z("body").scrollTop() || (document.documentElement && document.documentElement.scrollTop) || 0; if ( scrolltop - topoffset >= 0){ $z("body").addClass("padded"); $z("#nav").addClass("fixed"); } else{ $z("body").removeClass("padded"); $z("#nav").removeClass("fixed"); } setTimeout(function(){setoverflown();}, 100); } // globals var navOffset; $z(document).ready(function(){ // smooth scroll the layout specific go to top link $z("a.zpSO-Uplink-Flat").click(function(e){ e.preventDefault(); if ( $z(this.hash).length ){ $z('html,body').animate({ scrollTop: $z(this.hash).offset().top - parseInt($z("body").css("padding-top")) }, 500); window.location.hash = this.hash; } }); // switches the Mobile Navigation-Menu on/off, when "Menu" link is clicked. $z("a#mobilenavtoggle").on("click", function(e){ e.preventDefault(); $z("#nav").toggleClass("on"); setoverflown(); }); setoverflown(); var resizeTimeout = null; $z(window).resize(zpthrottle(100, function(event) { var event = event || window.event; if ( event && $z(event.target.nodeType).length == 0 ){// enable window.resize only for the window object (resizing elements might also trigger window.resize) which doesn't have a nodeType setoverflown(); } })); if ( "false" == "false" && ("true" == "true" || "false" == "true") ){ navOffset = $z("#nav:not(.fixed)").offset().top; setTimeout(function(){stickyNav(navOffset);}, 100); } }); $z(window).load(function(){ setTimeout(function(){setoverflown();}, 500); var navheight = 0; if ( "false" == "false" ){ navheight = $z("#nav").outerHeight(); } // pull anchors below fixed header into visible area if ( location.hash != "" && $z(':target').length ) { $z('html,body').animate({scrollTop: $z(':target').offset().top - navheight - 10 }, 600); } $z("a[href*='#']:not([href='#'])").not(".zpNoScroll").click(function () { var target = $z(this).attr("href"); target = target.substring(target.indexOf("#")); if ( $z(target).length ){ $z('html,body').animate({scrollTop: $z(target).offset().top - navheight - 10 }, 600); } }); if ( "false" == "false" && ("true" == "true" || "false" == "true") ){ if ( $z("#nav:not(.fixed)").length ){ navOffset = $z("#nav:not(.fixed)").offset().top; } setTimeout(function(){stickyNav(navOffset);}, 500); $z(window).scroll(zpthrottle(100, function(event) { stickyNav(navOffset); })); } });