var detect = new checkUser;

function checkUser()
{
	this.agt = navigator.userAgent.toLowerCase();
	this.is_major = parseInt(navigator.appVersion);
	this.is_minor = parseFloat(navigator.appVersion);
	this.is_nav = ((this.agt.indexOf('mozilla') != -1) && (this.agt.indexOf('spoofer') == -1) && (this.agt.indexOf('compatible') == -1) && (this.agt.indexOf('opera') == -1) && (this.agt.indexOf('webtv') == -1) && (this.agt.indexOf('hotjava') == -1));
	this.is_nav4 = (this.is_nav && (this.is_major == 4));
	this.is_nav4up = (this.is_nav && (this.is_major >= 4));
	this.is_navonly = (this.is_nav && ((this.agt.indexOf(";nav") != -1) || (this.agt.indexOf("; nav") != -1)) );
	this.is_nav6 = (this.is_nav && (this.is_major == 5));
	this.is_nav6up = (this.is_nav && (this.is_major >= 5));
	this.is_gecko = (this.agt.indexOf('gecko') != -1);
	this.is_ie = ((this.agt.indexOf("msie") != -1) && (this.agt.indexOf("opera") == -1));
	this.is_ie4 = (this.is_ie && (this.is_major == 4) && (this.agt.indexOf("msie 5") == -1) );
	this.is_ie4up = (this.is_ie && (this.is_major >= 4));
	this.is_ie5 = (this.is_ie && (this.is_major == 4) && (this.agt.indexOf("msie 5.0")!= -1) );
	this.is_ie5_5 = (this.is_ie && (this.is_major == 4) && (this.agt.indexOf("msie 5.5") != -1));
	this.is_ie5up = (this.is_ie && !this.is_ie3 && !this.is_ie4);
	this.is_ie5_5up = (this.is_ie && !this.is_ie3 && !this.is_ie4 && !this.is_ie5);
	this.is_mac = (this.agt.indexOf("mac") != -1);
}