var NS4=(document.layers)?1:0;var NS6=(!document.all&&document.getElementById)?true:false;var IE=(document.all)?1:0;var dropDownIdArray=new Array();dropDownIdArray[0]="knowledgeDiv";dropDownIdArray[1]="serviceDiv";dropDownIdArray[2]="aboutMercerDiv";var imageArray=new Array();var onRE_v1=/(\_on\_)/;var onRE_v2=/(\_on\.)/;var offRE_v1=/(\_off\_)/;var offRE_v2=/(\_off\.)/;var imgExt=/(\.(gif|jpg))$/;var activeMenuId="";var activeMenuImageLit=false;var currentMouseX=-1;var currentMouseY=-1;if(NS4||NS6){document.captureEvents(Event.MOUSEMOVE);}document.onmousemove=recordMousePosition;function recordMousePosition(c){var b,a;if(IE){b=event.clientX;a=event.clientY;}else{b=c.pageX;a=c.pageY;}currentMouseX=b;currentMouseY=a;}function isMouseOverMenu(f){var b,d,a,c;var i=false;var g;if(IE){g=document.all[f];}else{if(NS4){g=document.layers[f];}else{g=document.getElementById(f);}}if(g){if(NS4){b=g.left;d=b+g.clip.width;a=g.top;c=a+g.clip.height;}else{var h=(IE)?document.body.scrollTop:0;var e=(IE)?document.body.scrollLeft:0;b=parseInt(g.offsetLeft)-e;d=b+parseInt(g.offsetWidth);a=parseInt(g.offsetTop)-h;c=a+parseInt(g.offsetHeight);}if(((b<=currentMouseX)&&(currentMouseX<=d))&&((a<=currentMouseY)&&(currentMouseY<=c))){i=true;}}return i;}function doNavBarMouseOver(imgName,menuId){var imgObj=eval("document.images."+imgName);doCachedMouseOver(imgObj);activeMenuImageLit=true;doMenuDisplay(menuId);}function doNavBarMouseOut(imgObj,menuId){doCachedMouseOut(eval("document.images."+imgObj));activeMenuImageLit=false;doMenuHide(menuId);}function doCachedMouseOver(a){var b=imageArray[a.name];if(b){if(a.src!=b.onImage.src){a.src=b.onImage.src;}}}function doCachedMouseOut(a){var b=imageArray[a.name];if(b){if(b.initial==0){a.src=b.offImage.src;}}}function ImageWrapper(a,c,b){this.onImage=new Image();this.onImage.src=a;this.offImage=new Image();this.offImage.src=c;this.initial=b;return this;}function initHeader(){imageArray["img_nav_home"]=createWrapper(document.images.img_nav_home.src);imageArray["img_nav_knowledge"]=createWrapper(document.images.img_nav_knowledge.src);imageArray["img_nav_services"]=createWrapper(document.images.img_nav_services.src);imageArray["img_nav_careers"]=createWrapper(document.images.img_nav_careers.src);imageArray["img_nav_about"]=createWrapper(document.images.img_nav_about.src);if(typeof(document.images.img_nav_shop)!="undefined"){imageArray["img_nav_shop"]=createWrapper(document.images.img_nav_shop.src);}}function createCachedImage(a,b){imageArray[a]=createWrapper(b);}function createWrapper(c){var e;var b=0;var d,a;if(isLit(c)){b=1;a=c;if(onRE_v1.test(c)){d=c.replace(onRE_v1,"_off_");}else{d=c.replace(onRE_v2,"_off.");}e=new ImageWrapper(a,d,b);}else{b=0;d=c;if(offRE_v1.test(c)){a=c.replace(offRE_v1,"_on_");}else{if(offRE_v2.test(c)){a=c.replace(offRE_v2,"_on.");}else{a=c.replace(imgExt,"_on$1");}}e=new ImageWrapper(a,d,b);}return e;}function isLit(a){if(onRE_v1.test(a)||onRE_v2.test(a)){return true;}else{return false;}}function doMenuDisplay(b){var a;if(NS4||IE){a=WM_checkIn(b);}else{a=document.getElementById(b);}if(a&&(a.id!=activeMenuId)){doMenuHideAllExcept(b);doMenuVisibility(b,"on");}activeMenuId=b;}function doMenuHide(b){var a;if(NS4||IE){a=WM_checkIn(b);}else{a=document.getElementById(b);}if(a){self.setTimeout("monitorMouseForMenu('"+b+"')",250);}}function monitorMouseForMenu(d){var b;if(IE){b=document.all[d];}else{if(NS4){b=document.layers[d];}else{b=document.getElementById(d);}}var c;if(IE){c=document.all[activeMenuId];}else{if(NS4){c=document.layers[activeMenuId];}else{c=document.getElementById(activeMenuId);}}var a=true;if(c&&(b.id==c.id)){if(isMouseOverMenu(d)||activeMenuImageLit){self.setTimeout("monitorMouseForMenu('"+d+"')",250);a=false;}else{activeMenuId="";}}if(a){doMenuVisibility(d,"off");}}function doMenuVisibility(e,c){var d="visible",b="hidden";if(NS4){d="show";b="hide";}var a;if(NS4||IE){a=WM_checkIn(e);}else{a=document.getElementById(e).style;}if(a){if(c=="off"){if(a.visibility==d){a.visibility=b;}}else{if(a.visibility==b){a.visibility=d;}}}}function doMenuHideAllExcept(b){if(!b){b=-1;activeMenuId="";}for(var a=0;a<dropDownIdArray.length;a++){if(b!=dropDownIdArray[a]){doMenuVisibility(dropDownIdArray[a],"off");}}}