var flag=false; function Europe_onclick(){ if(flag==false){ document.getElementById("numId1").innerHTML="
 Albania
 Austria
 Belgium
 Bosnia and Herzegovina
 Bulgaria
 Croatia
 Czech Republic
 Denmark
 Estonia
 Finland
 France
 Germany
 Greece
 Hungary
 Iceland
 Ireland
 Italy
 Latvia
 Lithuania
 Luxembourg
 Macedonia
 Netherlands
 Norway
 Poland
 Portugal
 Romania
 Russian Federation
 Serbia and Montenegro
 Slovak Republic
 Slovenia
 Spain
 Sweden
 Switzerland
 Ukraine
 United Kingdom
"; flag=true; } else { document.getElementById("numId1").innerHTML=""; flag=false; } } function Asia_onclick(){ if(flag==false){ document.getElementById("numId2").innerHTML="
 China
 Vietnam
 Hong Kong
 India
 Indonesia
 Japan
 Korea
 Malaysia
 Philippines
 Singapore
 Taiwan
 Thailand
"; flag=true; } else { document.getElementById("numId2").innerHTML=""; flag=false; } } function Africa_onclick(){ //当鼠标经过时候出现二级菜单 if(flag==false){ document.getElementById("numId3").innerHTML="
 Bahrain
 Benin
 Burkina Faso
 Bosnia and Herzegovina
 Burundi
 Cameroon
 Congo (Democratic Republic)
 Cote_D_Ivoire_(Ivory_Coast)
 Egypt
 Ethiopia
 Gabon
 Ghana
 Guinea
 Iran
 Israel
 Jordan
 Kenya
 Kuwait
 Lebanon
 Morocco
 Nigeria
 Palestine
 Rwanda
 Saudi Arabia
 Senegal
 South Africa
 Syria
 Tanzania
 Togo
 Turkey
 Uganda
 United Arab Emirates
"; flag=true; } else { document.getElementById("numId3").innerHTML=""; flag=false; } } function Oceania_onclick(){ //当鼠标经过时候出现二级菜单 if(flag==false){ document.getElementById("numId4").innerHTML="
 Australia
 New Zealand
"; flag=true; } else { document.getElementById("numId4").innerHTML=""; flag=false; } } function North_onclick(){ //当鼠标经过时候出现二级菜单 if(flag==false){ document.getElementById("numId5").innerHTML="
 Canada
 Mexico
 United States of America
"; flag=true; } else { document.getElementById("numId5").innerHTML=""; flag=false; } } function South_onclick(){ //当鼠标经过时候出现二级菜单 if(flag==false){ document.getElementById("numId6").innerHTML="
 Argentina
 Brazil
 Chile
 Colombia
 Paraguay
 Peru
 Uruguay
  
"; flag=true; } else { document.getElementById("numId6").innerHTML=""; flag=false; } }