var brow = navigator.userAgent.toLowerCase() 
var uagent = navigator.userAgent
if(navigator.appVersion.indexOf("MSIE 5.0")>-1) document.write('<link  rel="Stylesheet" href="./include/ie5.0.css" type="text/css" />') 
if(navigator.appVersion.indexOf("MSIE 5.1")>-1) document.write('<link  rel="Stylesheet" href="./include/ie5.0.css" type="text/css" />') 
if(navigator.appVersion.indexOf("MSIE 5.5")>-1) document.write('<link  rel="Stylesheet" href="./include/ie5.5.css" type="text/css" />') 
if ( (navigator.appVersion.indexOf("MSIE 6.") >-1) && !(navigator.appVersion.indexOf("MSIE 7.")) ) 
	document.write('<link rel="Stylesheet" href="./include/ie6.0.css" type="text/css" />')
if  (navigator.appVersion.indexOf("MSIE 7.") >-1)  document.write('<link rel="Stylesheet" href="./include/ie7.0.css" type="text/css" />')
if(brow.indexOf("opera/6")>-1) document.write('<link rel="Stylesheet" href="./include/op6.css" type="text/css" />')
if(brow.indexOf("opera/7")>-1) document.write('<link rel="Stylesheet" href="./include/op7.css" type="text/css" />')
if((brow.indexOf("gecko") >-1) && (brow.indexOf("1.3") >-1) ) document.write('<link rel="Stylesheet" href="./include/op7.css" type="text/css" />')
if (uagent.indexOf("Gecko/2007") >-1) document.write('<link rel="Stylesheet" href="./include/ff3.css" type="text/css" />') 
if (uagent.indexOf("Firefox/3.") >-1) document.write('<link rel="Stylesheet" href="./include/ff3.css" type="text/css" />') 
if (uagent.indexOf("Firefox/2") >-1) document.write('<link rel="Stylesheet" href="./include/ff3.css" type="text/css" />')