if (document.images)
{
  pic1= new Image(530,310); 
  pic1.src="../images/map.over.australasia2.gif"; 

  pic2= new Image(530,310); 
  pic2.src="../images/map.over.africa2.gif"; 

  pic3= new Image(530,310); 
  pic3.src="../images/map.over.central.america2.gif"; 

  pic4= new Image(530,310); 
  pic4.src="../images/map.over.east.asia2.gif"; 

  pic5= new Image(530,310); 
  pic5.src="../images/map.over.europe2.gif"; 

  pic6= new Image(530,310); 
  pic6.src="../images/map.over.middle.east2.gif"; 

  pic7= new Image(530,310); 
  pic7.src="../images/map.over.north.america2.gif"; 

  pic8= new Image(530,310); 
  pic8.src="../images/map.over.south.america2.gif"; 

  pic9= new Image(530,310); 
  pic9.src="../images/map.over.south.asia2.gif"; 

  pic10= new Image(530,310); 
  pic10.src="../images/map.over.southeast.asia2.gif"; 
}