//window.alert (navigator.userAgent);
	function new_window (url) {
	link= window.open (url, "Link", "toolbar=0, location=0, directories=0, status=0, menubar=0, scrollbars=0, personalbar=0, sidebar=0, statusbar=0, resizable=0, width=640, height=480, top=100, left=100");
	}

	var isMac = navigator.userAgent.indexOf("Mac") != -1
	var isFirefox = navigator.userAgent.indexOf("Firefox") != -1
	var isIE7 = navigator.userAgent.indexOf("MSIE 7.0") != -1
	var isSafari3 = navigator.userAgent.indexOf("Version/3") != -1
	var res = screen.availWidth
	//alert (navigator.userAgent)
	//alert (isMac)
	//alert (isFirefox)
	//alert (res)
	
	
	if (res < 1025) {
		//document.write (res)
		if (isMac) {
			document.write ("<link rel='stylesheet' type='text/css' href='/css/alternative.css'>")
		} else {
			if (isFirefox) {
				//document.write ("firefox")
				document.write ("<link rel='stylesheet' type='text/css' href='/css/alternative.css'>")
				} else {
				//document.write ("PC")
				document.write ("<link rel='stylesheet' type='text/css' href='/css/alternativePC.css'>")
				}
			}
			
	} else {
		if (isSafari3) {
		document.write ("<link rel='stylesheet' type='text/css' href='/css/video_main_safari3.css'>")
		//window.alert ('safari3');
		} else if (isMac) {
		document.write ("<link rel='stylesheet' type='text/css' href='/css/main_bckup.css'>")
		//document.write ("firefox")
		//window.alert (navigator.userAgent);
		} else {
			if ((isFirefox)||(isIE7)) {
				//document.write ("firefox")
				document.write ("<link rel='stylesheet' type='text/css' href='/css/main_bckup.css'>")
				} else {
				//document.write ("PC")
				document.write ("<link rel='stylesheet' type='text/css' href='/css/PC.css'>")
				}
	 }
	 }