function openZoom(A){document.cookie="zoomText=; path=/";newWindow=window.open(A,"mfa_zoom","toolbar=no,status=no,width=620,height=600,directories=no,scrollbars=yes,location=no,resizable=yes,menubar=no")}function openZoomArt(A,B){document.cookie="zoomText="+A+"; path=/";newWindow=window.open(B,"mfa_zoom","toolbar=no,status=no,width=620,height=600,directories=no,scrollbars=yes,location=no,resizable=yes,menubar=no")}function modifyURL(D,B){if(window.location.href.indexOf(D+"=")>-1){var A=window.location.href.split(D+"=");var C=A[0]+D+"="+escape(B)+A[1].substring(0,A[1].indexOf("&"));window.location.href=C}else{if(window.location.href.indexOf("?")>-1){window.location.href=window.location.href+"&"+D+"="+escape(B)}else{window.location.href=window.location.href+"?"+D+"="+escape(B)}}return true}function newImage(A){if(document.images){rslt=new Image();rslt.src=A;return rslt}}function changeImages(){if(document.images&&(preloadFlag==true)){for(var A=0;A<changeImages.arguments.length;A+=2){document[changeImages.arguments[A]].src=changeImages.arguments[A+1]}}}var preloadFlag=false;function preloadImages(){if(document.images){top_nav_visit_over=newImage("images/top_nav_visit-over.gif");top_nav_calendar_over=newImage("images/top_nav_calendar-over.gif");top_nav_exhibitions_over=newImage("images/top_nav_exhibitions-over.gif");top_nav_collections_over=newImage("images/top_nav_collections-over.gif");top_nav_about_over=newImage("images/top_nav_about-over.gif");preloadFlag=true}};