jQuery(document).ready(function() {	


		var initial = true;

		jQuery('#logotipo').click(function() {
			window.location	= 'home.php';
		});
		
		jQuery.backstretch("img/bg1.jpg");

	var index = 0;
	//var images = ["img/bg1.jpg", "img/bg2.jpg", "img/bg3.jpg"];
	start_banner = function() {
		index = (index >= images.length - 1) ? 0 : index + 1;
		jQuery.backstretch(images[index], {speed: 500});
	}
	var intval=""
    function start_Int(){
		var index = 0;
		var images = ["img/bg1.jpg", "img/bg2.jpg", "img/bg3.jpg"];
        if(intval==""){
		  jQuery.backstretch(images[index], {speed: 'slow'});
          intval=window.setInterval("start_banner()",8000)
      }
    }

	
    function stop_Int(){
        if(intval!=""){
          window.clearInterval(intval)
          intval=""
      }else if(window.location.hash.substring(2) == "graphs.php"){
		  index = 2
		  jQuery.backstretch(images[index], {speed: 'slow'});
		} else{
		  index = 0
		  jQuery.backstretch(images[index], {speed: 'slow'});
			}
    }	
	function resizeWindow(x) {
			if(initial==true)
			{
				jQuery('#bg_header').css("height", x + 'px');
				var y = x + 90;
				jQuery("#ajusta_tela").css("min-height",(jQuery(window).height()-y) + "px");
				initial=false
			}
			else
			{
				jQuery('#bg_header').animate({"height": x + 'px'}, 'fast');
				var y = x + 90;
				jQuery("#ajusta_tela").animate({"min-height": (jQuery(window).height()-y) + "px"}, 'fast');
			}
		}
		
			
	});