function openWindow(theURL) { //v2.0
  _win = window.open(theURL,'howtodownload','width=280,height=240,top=0,left=0,menubar=no,location=no,resizable=no,toolbar=no,scrollbars=no');
  _win.focus();
}

function open_window(url) {
play = window.open(url,"map",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width=1000,height=484');
  }
  
 function open_river(url) {
play = window.open(url,"map",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width=1000,height=145');
  }
  
  function open_pan(url) {
play = window.open(url,"map",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width=1000,height=200');
  }
  
  function open_800x600(url) {
play = window.open(url,"map",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width=800,height=600');
  }

function open_750x560(url) {
play = window.open(url,"map",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width=560,height=750');
  }
  function open_horizontal(url) {
play = window.open(url,"yennakart",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width=640,height=480');
  }
  
  function open_vertical(url) {
play = window.open(url,"yennakart",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width=480,height=640');
  }