function PageQuery(q)
    {
        if(q.length > 1) this.q = q.substring(1, q.length);
        else this.q = null;
        
        this.keyValuePairs = new Array();
        
        if(q)
        {
            for(var i=0; i < this.q.split("&").length; i++)
            {
                this.keyValuePairs[i] = this.q.split("&")[i];
            }
        }
        
        this.getKeyValuePairs = function() { return this.keyValuePairs; }
        
        this.getValue = function(s)
        {
            for(var j=0; j < this.keyValuePairs.length; j++) 
            {
                if(this.keyValuePairs[j].split("=")[0] == s)
                    return this.keyValuePairs[j].split("=")[1];
            }
            
            return false;
        }

        this.getParameters = function() 
        {
            var a = new Array(this.getLength());
            
            for(var j=0; j < this.keyValuePairs.length; j++) 
            {
                a[j] = this.keyValuePairs[j].split("=")[0];
            }
            
            return a;
        }
        
        this.getLength = function() { return this.keyValuePairs.length; } 
    }
    
    function queryString(key)
    {
        var page = new PageQuery(window.location.search); 
        return page.getValue(key); 
    } 
	
	function Mostra(elemento)
	{
		if(elemento == 'clima')
		{
			var el1 = document.getElementById('clima');
		    el1.style.display = 'block';
			
			var el2 = document.getElementById('cotacao');
		    el2.style.display = 'none';	
		}
		
		if (elemento == 'cotacao')
		{
			var el2 = document.getElementById('clima');
		    el2.style.display = 'none';
			
			var objCotacao = document.getElementById('cotacao');
		    objCotacao.style.display = 'block';
		}	
	}
	
	function imageRotate()
	{
		var rand=Math.round(Math.random()*4);
		var img=new Array(5);
		
	    img[0]="home01.jpg";
		img[1]="home02.jpg";
		img[2]="home03.jpg";
		img[3]="home04.jpg";
		img[4]="home05.jpg";
		
		document.getElementById("imgRotate").src = "imagens/" + img[rand];
	}
	
	function imageRotateIngles()
	{
		var rand=Math.round(Math.random()*4);
		var img=new Array(5);
		
	    img[0]="home01.jpg";
		img[1]="home02Ing.jpg";
		img[2]="home03Ing.jpg";
		img[3]="home04Ing.jpg";
		img[4]="home05Ing.jpg";
		
		document.getElementById("imgRotate").src = "imagens/" + img[rand];
	}