// Lib miscelania

/* Pega as variáveis no meta */
function getMeta(meta) 
{
	var metaElements = document.all ? document.all.tags('META') : document.getElementsByTagName ? document.getElementsByTagName('META') : new Array();
	var metaKeywords = new Array();
	var metaTitle;
	var metaAuthor;
	var metaDescription;
	
	var i = 0;

	for (var m = 0; m < metaElements.length; m++)
	{
		if (metaElements[m].name == 'keywords')
			metaKeywords[i++] = metaElements[m].content;
		if (metaElements[m].name == 'title')
			metaTitle = metaElements[m].content;
		if (metaElements[m].name == 'author')
			metaAuthor = metaElements[m].content;
		if (metaElements[m].name == 'description')
			metaDescription = metaElements[m].content;
	}
	
	switch (meta)
	{
		case 'keywords' :
			return metaKeywords;
			break;
		case 'title' : 
			return metaTitle;
			break;
		case 'author' : 
			return metaAuthor;
			break;
		case 'description' : 
			return metaDescription;
			break;
		case 'url' :
			return location.href;
	}
}

/* Pega o valor da query string */
function getQueryString(variavel)
{
	var variaveis = location.search.replace(/\x3F/,"").replace(/\x2B/g," ").split("&");
	var nvar;

	if(variaveis != "")
	{
		var qs = [];
		
		for(var i = 0; i < variaveis.length; i++)
		{
			nvar = variaveis[i].split("=");
			qs[nvar[0]] = unescape(nvar[1]);
		}
		
		return qs[variavel];
	}
	return null;
}