//calendarnavigation 
<!--

Select_All_a = new Image(); Select_All_a.src = "img/images_a/kalendernavi_as_r1_c2.gif" ;  
Select_All_b = new Image(); Select_All_b.src = "img/images_b/kalendernavi_bs_r1_c2.gif"; 
Select_All_c = new Image(); Select_All_c.src = "img/images_c/kalendernavi_cs_r1_c2.gif" ; 

January_a = new Image(250, 36); January_a.src = "img/images_a/kalendernavi_as_r1_c3.gif" ;  
January_b = new Image(250, 36); January_b.src = "img/images_b/kalendernavi_bs_r1_c3.gif" ;   
January_c = new Image(250, 36); January_c.src = "img/images_c/kalendernavi_cs_r1_c3.gif" ; 

Strip_a = new Image(); Strip_a.src = "img/images_a/kalendernavi_as_r2_c2.gif" ;  
Strip_b = new Image(); Strip_b.src = "img/images_b/kalendernavi_bs_r2_c2.gif"; 
Strip_c = new Image(); Strip_c.src = "img/images_c/kalendernavi_cs_r2_c2.gif" ;  
  
February_a = new Image(250, 36); February_a.src = "img/images_a/kalendernavi_as_r1_c4.gif" ; 
February_b = new Image(250, 36); February_b.src = "img/images_b/kalendernavi_bs_r1_c4.gif" ;
February_c = new Image(250, 36); February_c.src = "img/images_c/kalendernavi_cs_r1_c4.gif" ; 
  
March_a = new Image(250, 36); March_a.src = "img/images_a/kalendernavi_as_r1_c5.gif" ;  
March_b = new Image(250, 36); March_b.src = "img/images_b/kalendernavi_bs_r1_c5.gif" ; 
March_c = new Image(250, 36); March_c.src = "img/images_c/kalendernavi_cs_r1_c5.gif" ; 

April_a = new Image(250, 36); April_a.src = "img/images_a/kalendernavi_as_r3_c2.gif" ; 
April_b = new Image(250, 36); April_b.src = "img/images_b/kalendernavi_bs_r3_c2.gif" ;  
April_c = new Image(250, 36); April_c.src = "img/images_c/kalendernavi_cs_r3_c2.gif" ; 

May_a = new Image(250, 36); May_a.src = "img/images_a/kalendernavi_as_r3_c4.gif" ;  
May_b = new Image(250, 36); May_b.src = "img/images_b/kalendernavi_bs_r3_c4.gif" ;  
May_c = new Image(250, 36); May_c.src = "img/images_c/kalendernavi_cs_r3_c4.gif" ;  

June_a = new Image(250, 36); June_a.src = "img/images_a/kalendernavi_as_r3_c5.gif" ;  
June_b = new Image(250, 36); June_b.src = "img/images_b/kalendernavi_bs_r3_c5.gif" ; 
June_c = new Image(250, 36); June_c.src = "img/images_c/kalendernavi_cs_r3_c5.gif" ;    

July_a = new Image(250, 36); July_a.src = "img/images_a/kalendernavi_as_r5_c2.gif" ;  
July_b = new Image(250, 36); July_b.src = "img/images_b/kalendernavi_bs_r5_c2.gif" ;  
July_c = new Image(250, 36); July_c.src = "img/images_c/kalendernavi_cs_r5_c2.gif" ; 
  
August_a = new Image(250, 36); August_a.src = "img/images_a/kalendernavi_as_r5_c4.gif" ;
August_b = new Image(250, 36); August_b.src = "img/images_b/kalendernavi_bs_r5_c4.gif" ;
August_c = new Image(250, 36); August_c.src = "img/images_c/kalendernavi_cs_r5_c4.gif" ;
  
September_a = new Image(250, 36); September_a.src = "img/images_a/kalendernavi_as_r5_c5.gif" ;  
September_b = new Image(250, 36); September_b.src = "img/images_b/kalendernavi_bs_r5_c5.gif" ;  
September_c = new Image(250, 36); September_c.src = "img/images_c/kalendernavi_cs_r5_c5.gif" ;  

October_a = new Image(250, 36); October_a.src = "img/images_a/kalendernavi_as_r7_c2.gif" ;  
October_b = new Image(250, 36); October_b.src = "img/images_b/kalendernavi_bs_r7_c2.gif" ; 
October_c = new Image(); October_c.src = "img/images_c/kalendernavi_cs_r7_c2.gif" ;   

November_a = new Image(250, 36); November_a.src = "img/images_a/kalendernavi_as_r7_c4.gif" ;  
November_b = new Image(250, 36); November_b.src = "img/images_b/kalendernavi_bs_r7_c4.gif" ;  
November_c = new Image(); November_c.src = "img/images_c/kalendernavi_cs_r7_c4.gif" ; 

December_a = new Image(250, 36); December_a.src = "img/images_a/kalendernavi_as_r7_c5.gif" ;  
December_b = new Image(250, 36); December_b.src = "img/images_b/kalendernavi_bs_r7_c5.gif" ; 
December_c = new Image(250, 36); December_c.src = "img/images_c/kalendernavi_cs_r7_c5.gif" ;  
 
Antique_a = new Image(); Antique_a.src = "img/images_a/kalendernavi_as_r1_c1.gif";  
Antique_b = new Image(); Antique_b.src =  "img/images_b/kalendernavi_bs_r1_c1.gif"; 
Antique_c = new Image(); Antique_c.src =  "img/images_c/kalendernavi_cs_r1_c1.gif"; 

Contemporary_a = new Image(); Contemporary_a.src = "img/images_a/kalendernavi_as_r2_c1.gif";  
Contemporary_b = new Image(); Contemporary_b.src =  "img/images_b/kalendernavi_bs_r2_c1.gif"; 
Contemporary_c = new Image(); Contemporary_c.src = "img/images_c/kalendernavi_cs_r2_c1.gif"; 

Period_a = new Image(); Period_a.src = "img/images_a/kalendernavi_as_r4_c1.gif" ;  
Period_b = new Image(); Period_b.src =  "img/images_b/kalendernavi_bs_r4_c1.gif"; 
Period_c = new Image(); Period_c.src = "img/images_c/kalendernavi_cs_r4_c1.gif" ;

Photo_a = new Image(); Photo_a.src = "img/images_a/kalendernavi_as_r5_c1.gif" ;  
Photo_b = new Image(); Photo_b.src =  "img/images_b/kalendernavi_bs_r5_c1.gif"; 
Photo_c = new Image(); Photo_c.src = "img/images_c/kalendernavi_cs_r5_c1.gif" ;  

Other_a = new Image(); Other_a.src = "img/images_a/kalendernavi_as_r6_c1.gif";  
Other_b = new Image(); Other_b.src =  "img/images_b/kalendernavi_bs_r6_c1.gif"; 
Other_c = new Image(); Other_c.src = "img/images_c/kalendernavi_cs_r6_c1.gif";


Allcategories_a = new Image(); Allcategories_a.src = "img/images_a/kalendernavi_as_r8_c1.gif" ;  
Allcategories_b = new Image(); Allcategories_b.src =  "img/images_b/kalendernavi_bs_r8_c1.gif"; 
Allcategories_c = new Image(); Allcategories_c.src = "img/images_c/kalendernavi_cs_r8_c1.gif" ; 

Details_a = new Image(); Details_a.src = "img/images_a/tabellenueberschriften_P1as.gif"
Details_b = new Image(); Details_b.src = "img/images_b/tabellenueberschriften_M1bs.gif"

Event_a = new Image(); Event_a.src = "img/images_a/tabellenueberschriften_E1as.gif"
Event_b = new Image(); Event_b.src = "img/images_b/tabellenueberschriften_E1bs.gif"

Date_a = new Image(); Date_a.src = "img/images_a/tabellenueberschriften_as_r1_c2.gif"
Date_b = new Image(); Date_b.src = "img/images_b/tabellenueberschriften_bs_r1_c2.gif"

Location_a = new Image(); Location_a.src = "img/images_a/tabellenueberschriften_as_r1_c3.gif"
Location_b = new Image(); Location_b.src = "img/images_b/tabellenueberschriften_bs_r1_c3.gif"

Exhibitors_a = new Image(); Exhibitors_a.src = "img/images_a/tabellenueberschriften_as_r1_c4.gif"
Exhibitors_b = new Image(); Exhibitors_b.src = "img/images_b/tabellenueberschriften_bs_r1_c4.gif"

Visitors_a = new Image(); Visitors_a.src = "img/images_a/tabellenueberschriften_as_r1_c5.gif"
Visitors_b = new Image(); Visitors_b.src = "img/images_b/tabellenueberschriften_bs_r1_c5.gif"

Show_Art_News_a = new Image(); Show_Art_News_a.src = "img/images_a/show_art_news_a.gif"
Show_Art_News_b = new Image(); Show_Art_News_b.src = "img/images_b/show_art_news_b.gif"

Hide_Art_News_a = new Image(); Hide_Art_News_a.src = "img/images_a/hide_art_news_a.gif"
Hide_Art_News_b = new Image(); Hide_Art_News_b.src = "img/images_b/hide_art_news_b.gif"

Blank_a = new Image(); Blank_a.src = "img/images_a/blank_a.gif"