function setRollovers(opts){if(!opts)opts={};opts.rolloverClass=opts.rolloverClass||'imgover';opts.defaultRolloverImageSuffix=opts.defaultRolloverImageSuffix||'_ov';var targetImageIdSuffixRe=new RegExp('_'+opts.rolloverClass+'$');setRolloversByTagName('img',function(image){return(true);});setRolloversByTagName('input',function(input){return(input.type=='image');});function setRolloversByTagName(targetTag,isRolloverObject){var aImages=document.getElementsByTagName(targetTag);for(var i=0,n=aImages.length;i<n;i++){var image=aImages[i];if(!image.className)continue;if(!getRolloverClass(image))continue;if(!isRolloverObject(image))continue;if(image.useMap){setRolloversClickableMap(image);continue;}
setRollover(image);}}
function getRolloverClass(anObject){var rolloverClassRe=new RegExp('^('+opts.rolloverClass+')(.*)');if(!anObject.className)return null;var classNames=anObject.className.split(' ');for(var i=0,n=classNames.length;i<n;i++){var classNameElements=classNames[i].match(rolloverClassRe);if(classNameElements)return classNameElements;}
return null;}
function setRolloversClickableMap(image){var mapId=image.useMap.match(/^\#(.*)/)[1];var areas=document.getElementsByName(mapId).item(0).areas;for(var i=0,n=areas.length;i<n;i++){if(getRolloverClass(areas[i])){setRollover(image,areas[i]);}}}
function setRollover(targetImage,eventCaptureObject){var src=targetImage.src;var targetImageId=targetImage.getAttribute('id')||'';var eventCaptureId=(targetImageId.match(targetImageIdSuffixRe))?targetImageId.replace(targetImageIdSuffixRe,''):'';eventCaptureObject=document.getElementById(eventCaptureId)||eventCaptureObject||targetImage;var rolloverImageSuffix=getRolloverClass(eventCaptureObject)[2]||opts.defaultRolloverImageSuffix;var ftype=src.substring(src.lastIndexOf('.'),src.length);var hsrc=src.replace(ftype,rolloverImageSuffix+ftype);var mouseoverImage=new Image();var mouseoutImage=new Image();mouseoverImage.src=hsrc;mouseoutImage.src=src;eventCaptureObject.onmouseover=function(){targetImage.src=hsrc;}
eventCaptureObject.onmouseout=function(){targetImage.src=src;}}}