function makewin(url) {
	
	      agent = navigator.userAgent;
	      windowName = "";
	
	      params  = "";
	      params += "toolbar=0,";
	      params += "location=0,";
	      params += "directories=0,";
	      params += "status=1,";
	      params += "menubar=1,";
	      params += "scrollbars=1,";
	      params += "resizable=1,";
	      params += "width=640,";
	      params += "height=480";
	   
	      win = window.open(url, windowName , params);
	
	      if (agent.indexOf("Mozilla/2") != -1 && agent.indexOf("Win") == -1) {
	          win = window.open(url, windowName , params);
	      }
	
	      if (!win.opener) {
	          win.opener = window;
	      }
	
  };

function makewin300(url) {
	
	      agent = navigator.userAgent;
	      windowName = "";
	
	      params  = "";
	      params += "toolbar=0,";
	      params += "location=0,";
	      params += "directories=0,";
	      params += "status=1,";
	      params += "menubar=1,";
	      params += "scrollbars=1,";
	      params += "resizable=1,";
	      params += "width=300,";
	      params += "height=300";
	   
	      win = window.open(url, windowName , params);
	
	      if (agent.indexOf("Mozilla/2") != -1 && agent.indexOf("Win") == -1) {
	          win = window.open(url, windowName , params);
	      }
	      if (!win.opener) {
	          win.opener = window;
	      }
	
  };

function makewin800(url) {
	
	      agent = navigator.userAgent;
	      windowName = "";
	
	      params  = "";
	      params += "toolbar=0,";
	      params += "location=0,";
	      params += "directories=0,";
	      params += "status=1,";
	      params += "menubar=1,";
	      params += "scrollbars=1,";
	      params += "resizable=1,";
	      params += "width=750,";
	      params += "height=540";
	   
	      win = window.open(url, windowName , params);
	
	      if (agent.indexOf("Mozilla/2") != -1 && agent.indexOf("Win") == -1) {
	          win = window.open(url, windowName , params);
	      }
	
	      if (!win.opener) {
	          win.opener = window;
	      }
	
  };