function pop_win(WinUrl, WinName, WinPars)
{
	if(Trim(WinPars) == "")
		WinPars	= "width=480,height=360,status=0,toolbar=0";
	window.open(WinUrl, WinName, WinPars);
}

function Trim(sString)
{
	var i=0;
	while(i < sString.length-1 && sString.substr(i,1) == " ")
		i++;
	sString = sString.substr(i,sString.length-i);
	i=sString.length;
	if(i)
		while(i && sString.substr(i-1,1) == " ")
			i--;
	return sString.substr(0,i);
}