if (navigator.userAgent.indexOf("Opera") != -1) {
	document.write("<link rel='stylesheet' type='text/css' href='css/op.css' />");
}
if (navigator.userAgent.indexOf("Chrome") != -1) {
	document.write("<link rel='stylesheet' type='text/css' href='css/chrome.css' />");
}
if (navigator.userAgent.indexOf("MSIE 5.0") != -1) {
	document.write("<link rel='stylesheet' type='text/css' href='css/msie0.css' />");
}
if (navigator.userAgent.indexOf("MSIE 5.5") != -1) {
	document.write("<link rel='stylesheet' type='text/css' href='css/msie.css' />");
}
if (navigator.userAgent.indexOf("MSIE 6.") != -1) {
	document.write("<link rel='stylesheet' type='text/css' href='css/msie.css' />");
}
if (navigator.userAgent.indexOf("MSIE 7.0") != -1) {
	document.write("<link rel='stylesheet' type='text/css' href='css/msie7.css' />");
}