	function browser_switch(){
		var browser_string=navigator.userAgent;
		/*alert(browser_string);*/
		var browser_name;
		//alert(browser_string);
		//alert(navigator.appName);
		//alert(navigator.userAgent);
		//alert(browser_string.indexOf('MSIE 5'));
		if(browser_string.indexOf('MSIE 6')>0 && browser_string.indexOf('MSIE 7')==0){
			browser_name="msie6";
			//alert(browser_name);
			//alert(browser_name);
			return '<link rel="stylesheet" href="'+browser_name+'.css" type="text/css" media="screen,projection" />';			
		}
		if(browser_string.indexOf('MSIE 8')>0){
			browser_name="msie8";
			//alert(browser_name);
			//alert(browser_name);
			return '<link rel="stylesheet" href="'+browser_name+'.css" type="text/css" media="screen,projection" />';			
		}		
		if(browser_string.indexOf('MSIE')>0){
			browser_name="msie8";
			//alert(browser_name);
			//alert(browser_name);
			return '<link rel="stylesheet" href="msie8.css" type="text/css" media="screen,projection" />';			
		} 				
		if(browser_string.indexOf('Firefox/3')>0){
			browser_name="ff3";
			//alert(browser_name);
			//alert(browser_name);
			return '<link rel="stylesheet" href="'+browser_name+'.css" type="text/css" media="screen,projection" />';			
		}	
		if(browser_string.indexOf('Chrome/')>0){
			browser_name="ff3";
			//alert(browser_name);
			//alert(browser_name);
			return '<link rel="stylesheet" href="'+browser_name+'.css" type="text/css" media="screen,projection" />';			
		}			
		else{
			//alert('undef');
			return '';
		}			
	}
	
	function showBrowser()
	{
		return(navigator.userAgent);
	}
