function LoadStylesheet(cssName)
    {
    	
	    document.write('<link href="/lib/css/'+cssName+'.css") rel="stylesheet" type="text/css" />');
    	
	    if(browser.isSafari){
		    document.write('<link href="/lib/css/'+cssName+'Safari.css" rel="stylesheet" type="text/css" />');
	    }
	    if(browser.isIE && browser.isMac){
		    document.write('<link href="/lib/css/'+cssName+'IEMac.css" rel="stylesheet" type="text/css" />');
	    }
	    if(browser.isGecko){
		    document.write('<link href="/lib/css/'+cssName+'Gecko.css" rel="stylesheet" type="text/css" />');
	    }
    }

    function DisplayPngAlpha(imgID)
	{
		var img = document.getElementById(imgID);
		
		var rslt = navigator.appVersion.match(/MSIE (\d+\.\d+)/, '');
        if (rslt != null && Number(rslt[1]) >= 5.5)
        {
        	var src = img.src;
			img.style.width = img.width + "px";
			img.style.height = img.height + "px";
			img.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "', sizingMethod='scale')";
			img.src = "http://www.trelogic.it/img/null.gif";
		}
		
		img.style.visibility = "visible";
	}