function open_des(theURL) { 
  winName="desWin";
  features="width=700,height=400,scrollbars"
  newWindow=window.open(theURL,winName,features);
  newWindow.focus();
}

function open_tex(theURL) { 
  winName="texWin";
  features="width=600,height=400,resizable"
  newWindow=window.open(theURL,winName,features);
  newWindow.focus();
}

function open_pics(theURL) { 
  winName="picWin";
  features="width=744,height=400,resizable"
  newWindow=window.open(theURL,winName,features);
  newWindow.focus();
}