//@ Homepage at WEB DESIGN Jens Michael & Olaf Teichmann GbR
//@ ----------------------
//@ Alle in dieser Scriptdatei enhaltenen Programmteile sind urheberrechtlich geschuetzt.
//@ Copyright by at WEB DESIGN civil law association 1999. All rights reserved.


  var browser = "";
  var agent = navigator.userAgent;
  if (agent.indexOf("MSIE 4") != -1 
	|| agent.indexOf("MSIE 5") != -1) {browser="IE4"}
  else if (agent.indexOf("MSIE 3") != -1) {browser="IE3"}
  else if (agent.indexOf("Mozilla/4") != -1 
	|| agent.indexOf("Mozilla/5") != -1) {browser="N4"}
  else if (agent.indexOf("Mozilla/3") != -1) {browser="N3"}
  else {browser="andere"}



  var	imgCounter	= 0;
  var	image		= new Array();



  var	NavMainMenu = "";
  var	NavSubMenu  = 0;

  var	counter=0;

  var	window_width	= 155;
  var	total_window_width = 0;
  var	graphics_mult	= 1;
  var	max_width	= 188;
	if (browser == "IE4" || browser == "N3") 
	max_width = max_width - 4;
  var	total_window_mult = (1024/max_width);




  function set_graphics_mult()
  {
	old_graphics_mult = graphics_mult;
	if (top.nav_logo.document.sizer)
		window_width = top.nav_logo.document.sizer.width;
	total_window_width = window_width * total_window_mult;
	graphics_mult = window_width / max_width;

	if (old_graphics_mult != graphics_mult && counter==1)
	{
		top.nav_logo.location.href="nav_logo.htm";
		top.nav.location.href="nav.htm";
	}
	counter=1;
  }	



  function convert(size)
  {
	if (size<0) return(-size);
	if (size>1)
		return(Math.round(size * graphics_mult));
	else	return(1);
  }



  function load_menu(menu, submenu)
  {
	if (NavMainMenu != menu || NavSubMenu != submenu)	//nur, wenn anderes Menü angezeigt wird
	{	NavMainMenu = menu;
		NavSubMenu  = submenu;
		parent.nav.location.href="nav.htm";
	}
  }




  function name_to_number(MenuName)
  {
	if (MenuName == "Wer") return(0);
	if (MenuName == "Was") return(1);
	if (MenuName == "Kon") return(2);
  }



  function getimg(name)
  {
	return('images/'+name);
  }



  function load_image(name, inactive, active, blinking, text)
  {
	image[imgCounter]	 = new Array(5);
	image[imgCounter][0] 	 = name;
	image[imgCounter][1] 	 = new Image();
	image[imgCounter][1].src = inactive;
	image[imgCounter][2] 	 = new Image();
	image[imgCounter][2].src = active;
	image[imgCounter][3] 	 = new Image();
	image[imgCounter][3].src = blinking;
	image[imgCounter][4] 	 = text;

	imgCounter++;
  }



  function preload_images()
  {
	if (browser != "IE3") {
	load_image("Wer", getimg("wer_i.gif"), getimg("wer_a.gif"), getimg("wer_b.gif"), "Wer wir sind");
	load_image("Was", getimg("was_i.gif"), getimg("was_a.gif"), getimg("was_b.gif"), "Was wir k&ouml;nnen");
	load_image("Kon", getimg("kon_i.gif"), getimg("kon_a.gif"), getimg("kon_b.gif"), "Kontakt zu uns");}
  }



  function show_changing_image(menu, submenu, height, width)
  {
	if (submenu == 0)
	     current = (menu == NavMainMenu);
	else current = (submenu == NavSubMenu);

	if (browser=="IE3") {
	  if (current) return('<IMG SRC="images/'+menu+'_a.gif" BORDER=0 HEIGHT='+convert(height)+' WIDTH='+convert(width)+'>');
	  else return('<IMG SRC="images/'+menu+'_i.gif" BORDER=0 HEIGHT='+convert(height)+' WIDTH='+convert(width)+'>');
	}
	for (i=0; i < imgCounter; i++) {
	  if (menu == image[i][0]) {
	    if (current)
		 return('<IMG SRC='+image[i][2].src+' NAME="'+menu+submenu+'" BORDER=0 HEIGHT='+convert(height)+' WIDTH='+convert(width)+' ALT="'+image[i][4]+'">');
	    else return('<IMG SRC='+image[i][1].src+' NAME="'+menu+submenu+'" BORDER=0 HEIGHT='+convert(height)+' WIDTH='+convert(width)+' ALT="'+image[i][4]+'">');
	    break;
	  }
	}
	return("");
  }



  function generate_onMouseOver(menu, submenu)
  {
	if  (browser=="IE3") return ('');

	if (menu == NavMainMenu
	&& (submenu == NavSubMenu || submenu == 0))
	     InternImgNr = 2;
	else InternImgNr = 1;

	menuNr    = name_to_number(menu);
	ImageName = menu + submenu;
	return(' onMouseOver="change_image('+ImageName+', parent.image['+menuNr+'][3])" onMouseOut="change_image('+ImageName+', parent.image['+menuNr+']['+InternImgNr+'])"');
  }




  function generate_image_tags(name, height, width, alt, align)
  {
	if (!align) align="";
	if (align == "TOP" || align == "BOTTOM")
		{align = " ALIGN="+align}
	else	{align = ""}
	return('<IMG SRC='+getimg(name)+' BORDER=0 HEIGHT='+convert(height)+' WIDTH='+convert(width)+' ALT="'+alt+'"'+align+'>');
  }




  function generate_image_tags2(name1,height1,width1,name2,height2,width2,alt,p)
  {
	if (total_window_width>p)
		return('<IMG SRC='+getimg(name2)+' BORDER=0 HEIGHT='+height2+' WIDTH='+width2+' ALT="'+alt+'">');
	else	return('<IMG SRC='+getimg(name1)+' BORDER=0 HEIGHT='+height1+' WIDTH='+width1+' ALT="'+alt+'">');
  }



  function show_black_line(height, width)
  {
	return('<IMG SRC="images/blackdot.gif" HEIGHT='+convert(height)+' WIDTH='+convert(width)+'>');
  }



  function show_space(height, width)
  {
	return('<IMG SRC="images/cleardot.gif" HEIGHT='+convert(height)+' WIDTH='+convert(width)+'>');
  }



  function show_text(text, size)
  {
	return("<FONT FACE='VERDANA,ARIAL,HELVETICA,GENEVA' SIZE="+convert(size)+">"+text+"</FONT>");
  }