function CheckBrowser()
{


	if(navigator.appName == "Microsoft Internet Explorer")
 		return 1;
	

	if(navigator.appName == "Netscape")
 		return 2;


	return 0;

}



function CheckNip( inputVal ) 
{ 
	if ( !inputVal.match( /^[0-9]{3}-[0-9]{2}-[0-9]{2}-[0-9]{3}$/ ) ) 
	{ 
	return false; 
	} 

	var ar = inputVal.replace(/-/g,''); 
	var arg = inputVal.replace(/-/g,''); 
	var coefficients = "657234567"; 
	var sum=0; 
	var index=8; 
	for (index=8; index>=0 ;index--)if( rr==false ) 
	sum += (parseInt(coefficients.charAt(index)) * parseInt(arg.charAt(index))); 
	
	if ( (sum % 11) == 10 ? false : ((sum % 11) == parseInt(arg.charAt(9))) ) 
		return true; 

	return false; 
}


function CheckLetter(inputVal)
{


    reg = /^[a-zA-Z����󜿟��ʣ�ӌ��]{2,20}$/;
    wyn = inputVal.match(reg);
    
	if (wyn == null) 
     	   return false;

return true;    

}


function CheckEmail(email)
{
   var dobryEmail=/^[^@]+@([a-z0-9\-]+\.)+[a-z]{2,4}$/i;
  
	if(!dobryEmail.test(email))
		return false;
		   	    
return true;

}