if((is.ns4) && (!is.ns6) && (!is.ns7))
	{
	//alert("ns4")
	document.write('<link href="/sectors/imda/webimda.nsf/vLA/navstyle.css/$File/navstyle.css" media="screen" rel="StyleSheet" type="text/css">')
	}
	if (is.Mac5) 
	{
	//alert("is.Mac5")
	document.write('<link href="/sectors/imda/webimda.nsf/vLA/navstyle.css/$File/navstyle.css" media="screen" rel="StyleSheet" type="text/css"><link href="/sectors/imda/webimda.nsf/vLA/iestyle.css/$File/iestyle.css" media="screen" rel="StyleSheet" type="text/css">')
	}
	else if (is.ns6) 
	{
	//alert("is.ns6")
	document.write('<link href="/sectors/imda/webimda.nsf/vLA/nsstyle.css/$File/nsstyle.css" media="screen" rel="StyleSheet" type="text/css">')
	}
	else if (is.ns7) 
	{
	//alert("is.ns7")
	document.write('<link href="/sectors/imda/webimda.nsf/vLA/nsstyle.css/$File/nsstyle.css" media="screen" rel="StyleSheet" type="text/css">')
	}
	else if(is.ie4) 
	{
	//alert("internet explorer")
	document.write('<style>@import url(/sectors/imda/webimda.nsf/vLA/iestyle.css/$File/iestyle.css);</style>')
	}