function preload_img(){

  var img;
  for (i=0; i<=9; i++){
       img=new Image();
       img.src="images/m"+ i +"_hover.gif";  
  }

}

function swap_hover(nr){
	  menu_img     = eval("document.m"+nr);
     menu_img.src = "images/m"+nr+"_hover.gif";
}


function swap_down(nr){
	  menu_img     = eval("document.m"+nr);
     menu_img.src = "images/m"+nr+".gif";
}


function s_swap_hover(m,nr){
	  menu_img     = eval("document.ms"+nr);
     menu_img.src = "images/m"+m+"_s"+nr+"_hover.gif";
}


function s_swap_down(m,nr){
	  menu_img     = eval("document.ms"+nr);
     menu_img.src = "images/m"+m+"_s"+nr+".gif";
}


function pop_disclaimer(){

	   if (navigator.appName != 'Netscape'){ win=window.open("disclaimer.html","discl","resizable=yes,height=500,width=450,scrollbars");   }
	   else{  win=window.open("disclaimer.html","discl","resizable=yes,height=500,width=450,scrollbars");   }

}


function pop_info(url){

	   if (navigator.appName != 'Netscape'){ win=window.open(url,"info","resizable=yes,height=270,width=350,scrollbars");   }
	   else{  win=window.open(url,"info","resizable=yes,height=270,width=350,scrollbars");   }

}


function pop_info_mod(){

	   if (navigator.appName != 'Netscape'){ win=window.open("info_mod.html","info_mod","resizable=yes,height=500,width=450,scrollbars");   }
	   else{  win=window.open("info_mod.html","info_mod","resizable=yes,height=500,width=450,scrollbars");   }

}


function pop_fases(url){

	   if (navigator.appName != 'Netscape'){ win=window.open(url,"fase","resizable=yes,height=450,width=450,scrollbars");   }
	   else{  win=window.open(url,"fase","resizable=yes,height=450,width=450,scrollbars");   }

}


function pop_map(){

	   if (navigator.appName != 'Netscape'){ win=window.open("map.html","map","resizable=yes,height=500,width=550,scrollbars");   }
	   else{  win=window.open("map.html","map","resizable=yes,height=500,width=550,scrollbars");   }

}