var preloadFlag=false;function newImage(imgPath){if(document.images){image=new Image();image.src=imgPath;return image;}}
function preloadImages(imgLocation,imgList){var image;if(document.images){for(var i=0;i<imgList.length;i++){image=newImage(imgLocation+imgList[i]);}
preloadFlag=true;}}
function billboardButtonHover(id,className){document.getElementById(id).className=className;}
function changeLocation(formIndex){var w=document.forms[formIndex].locationList.selectedIndex;var url_add=document.forms[formIndex].locationList.options[w].value;window.location.href=url_add;}
function filterSchedule(day){document.scheduleFilterForm.day.value=day;document.scheduleFilterForm.submit();}
function topNavItem(item){return'<div class="sub-top">'+item+'</div>';}
function middleNavItem(item){return'<div class="sub-middle">'+item+'</div>';}
function bottomNavItem(item){return'<div class="sub-bottom">'+item+'</div>';}
function singleNavItem(item){return'<div class="sub-top-bottom">'+item+'</div>';}