function addLoadEvent(func) {
    var oldonload = window.onload;
    if (typeof window.onload != 'function') {
        window.onload = func;
    } else {
        window.onload = function() {
            if (oldonload) {
                oldonload();
            }
            func();
        }
    }
}

function xform()
{
	/* Label */
	var labels=document.getElementsByTagName("label");
	for (var i=0; i < labels.length; i++)
	{
		// Firefox
		if(BrowserDetect.browser == "Firefox")
		{
			var labelContent = labels[i].innerHTML;
			var labelWidth = document.defaultView.getComputedStyle( labels[i], '' ).getPropertyValue( 'width' );
			var labelSpan = document.createElement('span');
			labelSpan.style.display = 'block';
			labelSpan.style.width = labelWidth;
			labelSpan.innerHTML = labelContent;
			labels[i].style.display = '-moz-inline-box';
			labels[i].innerHTML = null;
			labels[i].appendChild( labelSpan );
		}
		// Resto de navegadores
		else
		{
			labels[i].style.display = 'inline-block';
		}
	};
}

function imagenes() {
	if($(".imagenes").length)
	{
		$(".imagen > a").css("position", "absolute");
		$(".imagen > a").css("top", "200px");
		$(".imagen > a").css("left", "230px");
		if($(".imagen > img").attr("longDesc"))
		{
			// Si es Firefox, usa el cursor de zoom
			if(BrowserDetect.browser == "Firefox")
				$(".imagen > img").css('cursor','-moz-zoom-in');
			else
				$(".imagen > img").css('cursor','pointer');

			$(".imagen > img").click(function()
			{
				$("div.ampliada").empty();
				$("div.ampliada").append("<img src=\""+$(this).attr("longDesc")+"\" alt=\""+$(this).attr("alt")+"\" /><span>&nbsp;</span>");
				$('div.ampliada').fadeIn();
			});
		}

		if($(".ampliada").length)
		{
			// Si es Firefox, usa el cursor de zoom
			if(BrowserDetect.browser == "Firefox")
				$(".ampliada").css('cursor','-moz-zoom-out');
			else
				$(".ampliada").css('cursor','pointer');

			$(".ampliada").click(function()
			{
				$(this).fadeOut();
			});
		}
	}
}

var BrowserDetect = {
	init: function () {
		this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
		this.version = this.searchVersion(navigator.userAgent)
			|| this.searchVersion(navigator.appVersion)
			|| "an unknown version";
		this.OS = this.searchString(this.dataOS) || "an unknown OS";
	},
	searchString: function (data) {
		for (var i=0;i<data.length;i++)	{
			var dataString = data[i].string;
			var dataProp = data[i].prop;
			this.versionSearchString = data[i].versionSearch || data[i].identity;
			if (dataString) {
				if (dataString.indexOf(data[i].subString) != -1)
					return data[i].identity;
			}
			else if (dataProp)
				return data[i].identity;
		}
	},
	searchVersion: function (dataString) {
		var index = dataString.indexOf(this.versionSearchString);
		if (index == -1) return;
		return parseFloat(dataString.substring(index+this.versionSearchString.length+1));
	},
	dataBrowser: [
		{ 	string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari"
		},
		{
			prop: window.opera,
			identity: "Opera"
		},
		{
			string: navigator.vendor,
			subString: "iCab",
			identity: "iCab"
		},
		{
			string: navigator.vendor,
			subString: "KDE",
			identity: "Konqueror"
		},
		{
			string: navigator.userAgent,
			subString: "Firefox",
			identity: "Firefox"
		},
		{
			string: navigator.vendor,
			subString: "Camino",
			identity: "Camino"
		},
		{		// for newer Netscapes (6+)
			string: navigator.userAgent,
			subString: "Netscape",
			identity: "Netscape"
		},
		{
			string: navigator.userAgent,
			subString: "MSIE",
			identity: "Explorer",
			versionSearch: "MSIE"
		},
		{
			string: navigator.userAgent,
			subString: "Gecko",
			identity: "Mozilla",
			versionSearch: "rv"
		},
		{ 		// for older Netscapes (4-)
			string: navigator.userAgent,
			subString: "Mozilla",
			identity: "Netscape",
			versionSearch: "Mozilla"
		}
	],
	dataOS : [
		{
			string: navigator.platform,
			subString: "Win",
			identity: "Windows"
		},
		{
			string: navigator.platform,
			subString: "Mac",
			identity: "Mac"
		},
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]

};
BrowserDetect.init();
addLoadEvent(xform);
addLoadEvent(imagenes);