if(document.images){toc_item["mobileImg"]=new toc_item("mobile_on.gif","mobile_off.gif","Mobile");toc_item["opticalImg"]=new toc_item("optical_on.gif","optical_off.gif","Optical");toc_item["businessImg"]=new toc_item("business_on.gif","business_off.gif","Business");toc_item["servicesImg"]=new toc_item("services_on.gif","services_off.gif","Services");toc_item["productsImg"]=new toc_item("products_on.gif","products_off.gif","Products");toc_item["marketsImg"]=new toc_item("markets_on.gif","markets_off.gif","Markets");toc_item["newsImg"]=new toc_item("news_on.gif","news_off.gif","News");toc_item["aboutImg"]=new toc_item("about_on.gif","about_off.gif","About");toc_item["investorImg"]=new toc_item("investors_on.gif","investors_off.gif","Investors");toc_item["contactImg"]=new toc_item("contact_on.gif","contact_off.gif","Contact");toc_item["loginImg"]=new toc_item("login_on.gif","login_off.gif","Login");toc_item["sitemapImg"]=new toc_item("sitemap_on.gif","sitemap_off.gif","Site Map");}
function imageOn(itemID){if(document.images){$("#"+itemID).attr("src",toc_item[itemID].toc_img_on.src);self.status=toc_item[itemID].msg;}}
function imageOff(itemID){if(document.images){$("#"+itemID).attr("src",toc_item[itemID].toc_img_off.src);self.status="Tellabs";}}
function toc_item(sourceOn,sourceOff,msg){this.sourceOn=sourceOn;this.sourceOff=sourceOff;this.msg=msg;if(document.images){this.toc_img_on=new Image();this.toc_img_off=new Image();this.toc_img_on.src="/images/nav/"+this.sourceOn;this.toc_img_off.src="/images/nav/"+this.sourceOff;}}
var timer="";var openMenu=null;var hoverImg=null;var canMenuBeClosed=true;function clearTimer(){window.clearTimeout(timer);}
function tryToClose(){if(hoverImg!=null){imageOff(hoverImg);hoverImg=null;}
var funcToCall="canMenuBeClosed = true"
timer=window.setTimeout(funcToCall,500);}
function showMenu(id){if(hoverImg!=null){imageOff(hoverImg);hoverImg=null;}
if(document.getElementById){openMenu=id+'Menu';if(id!='mobile'&&openMenu!='mobileMenu'){hideMenu('mobileMenu')};if(id!='optical'&&openMenu!='opticalMenu'){hideMenu('opticalMenu')};if(id!='business'&&openMenu!='businessMenu'){hideMenu('businessMenu')};if(id!='services'&&openMenu!='servicesMenu'){hideMenu('servicesMenu')};if(id!='products'&&openMenu!='productsMenu'){hideMenu('productsMenu')};if(id!='markets'&&openMenu!='marketsMenu'){hideMenu('marketsMenu')};if(id!='news'&&openMenu!='newsMenu'){hideMenu('newsMenu')};if(id!='about'&&openMenu!='aboutMenu'){hideMenu('aboutMenu')};if(id!='investor'&&openMenu!='investorMenu'){hideMenu('investorMenu')};if(id!='contact'&&openMenu!='contactMenu'){hideMenu('contactMenu')};if(id!='login'&&openMenu!='loginMenu'){hideMenu('loginMenu')};if(id!='sitemap'&&openMenu!='sitemapMenu'){hideMenu('sitemapMenu')};clearTimer();hoverImg=id+'Img';canMenuBeClosed=false;var x=0;var y=0;var pos=$("#"+hoverImg).offset();var height=$("#"+hoverImg).height();x=pos.left-3;y=pos.top+height;if(mobile){x=x-window.pageXOffset;y=y-window.pageYOffset;}
if($.browser.msie&&$.browser.version<8){y=y+4;}
$("#"+openMenu).css({"left":x+"px","top":y+"px"});$("#"+openMenu).slideDown('fast').show();imageOn(hoverImg);}}
function hideMenu(id){$("#"+id).slideUp('slow');}
function getMousePos(event){var x,y;if(window.event){x=window.event.clientX;y=window.event.clientY;if(document.documentElement&&document.documentElement.scrollTop){x+=document.documentElement.scrollLeft;y+=document.documentElement.scrollTop;}else{x+=document.body.scrollLeft;y+=document.body.scrollTop;}}else{x=event.pageX;y=event.pageY;}
if(openMenu!=null){var testInside=isInside(x,y,openMenu);if(!testInside&&canMenuBeClosed==true){hideMenu(openMenu);}
if(testInside){canMenuBeClosed=true;clearTimer();}}}
function isInside(xMouse,yMouse,id){var pos=$("#"+id).offset();var height=$("#"+id).height();var width=$("#"+id).width();if((id!=null)&&(xMouse>=pos.left)&&(xMouse<=pos.left+width)&&(yMouse>=pos.top-13)&&(yMouse<=pos.top+height)){return true;}else{return false;}}
window.onload=function(){document.onmousemove=getMousePos;}