var isNS4 = (navigator.appName=="Netscape")?1:0;
	
	function keydsq() { //v3.0
      if(!isNS4){if (event.keyCode==34 || event.keyCode==39) event.returnValue = false;}
	  else{if (event.which==34 || event.which==39) return false;}
    }
	
	function keynumo() { //v3.0
      if(!isNS4){if(event.keyCode < 48 || event.keyCode > 57) event.returnValue = false;}
	  else{if(event.which < 48 || event.which > 57) returnfalse;}
    }