var openedup = '';

is = new ottosniff();
function ottosniff() {
	var b = navigator.appName
	if (b=="Netscape") this.b = "ns"
	else this.b = b
	this.version = navigator.appVersion
	this.v = parseInt(this.version)
	this.ns = (this.b=="ns" && this.v>=5)
	this.op = (navigator.userAgent.indexOf('Opera')>-1)
	this.safari = (navigator.userAgent.indexOf('Safari')>-1)
	this.op7 = (navigator.userAgent.indexOf('Opera')>-1 && this.v>=7 && this.v<8)
	this.op78 = (navigator.userAgent.indexOf('Opera')>-1 && this.v>=7 || navigator.userAgent.indexOf('Opera')>-1 && this.v>=8)
	this.ie5 = (this.version.indexOf('MSIE 5')>-1)
	this.ie6 = (this.version.indexOf('MSIE 6')>-1)
	this.ie7 = (this.version.indexOf('MSIE 7')>-1)
	this.ie56 = (this.ie5||this.ie6)
	this.iewin = (this.ie56 && navigator.userAgent.indexOf('Windows')>-1 || this.ie7 && navigator.userAgent.indexOf('Windows')>-1)
	this.iemac = (this.ie56 && navigator.userAgent.indexOf('Mac')>-1)
	this.moz = (navigator.userAgent.indexOf('Mozilla')>-1)
	this.ff = (navigator.userAgent.indexOf('Firefox')>-1)
	this.moz13 = (navigator.userAgent.indexOf('Mozilla')>-1 && navigator.userAgent.indexOf('1.3')>-1) 
	this.oldmoz = (navigator.userAgent.indexOf('Mozilla')>-1 && navigator.userAgent.indexOf('1.4')>-1 && !this.ff ||navigator.userAgent.indexOf('Mozilla')>-1 && navigator.userAgent.indexOf('1.5')>-1 && !this.ff ||navigator.userAgent.indexOf('Mozilla')>-1 && navigator.userAgent.indexOf('1.6')>-1 && !this.ff)
	this.ns6 = (navigator.userAgent.indexOf('Netscape6')>-1)
	this.docom = (this.ie56||this.ns||this.iewin||this.op||this.iemac||this.safari||this.moz||this.oldmoz||this.ns6)
}



// pop up window function
function openPopup(newwindow) {	
	if (!is.ie56){
		document.getElementById('thisbg').style.display = 'block';
	}
	document.getElementById(newwindow).style.display = 'block';
	openedup = newwindow;
}

function closepop() {	
	if (openedup != ''){
		if (!is.ie56){
			document.getElementById('thisbg').style.display = 'none';
		}
		document.getElementById(openedup).style.display = 'none';
	}
}