function blendimage(divid, imageid, imagefile, millisec) {
	if (document.getElementById(imageid).src != imagefile) {
		var speed = Math.round(millisec / 100);
		var timer = 0;

		//set the current image as background
		document.getElementById(divid).style.backgroundImage = "url(" + document.getElementById(imageid).src + ")";

		//make image transparent
		changeOpac(0, imageid);

		//make new image
		document.getElementById(imageid).src = imagefile;

		//fade in image
		for(i = 0; i <= 100; i++) {
			setTimeout("changeOpac(" + i + ",'" + imageid + "')",(timer * speed));
			timer++;
		}
 
		if (imagefile == "images/bgr1.jpg" || imagefile == "images/bgr2.jpg" || imagefile == "images/bgr3.jpg" || imagefile == "images/bgr4.jpg" || imagefile == "images/bgr5.jpg") {
		   document.getElementById("logo2").style.display = 'block';
		   document.getElementById("ctc").style.visibility = 'visible';
                   if (document.getElementById("ctc").link == '2') { var globimg = setTimeout(globalshow, 1500) };
		}
		else {
		   document.getElementById("logo2").style.display = 'none';
		   document.getElementById("ctc").style.visibility = 'hidden';
		   document.getElementById("contactFRM").style.visibility = 'hidden';
		}
	}
}

function opacity(id, opacStart, opacEnd, millisec) {
	//speed for each frame
	var speed = Math.round(millisec / 100);
	var timer = 0;

	//determine the direction for the blending, if start and end are the same nothing happens
	if(opacStart > opacEnd) {
		for(i = opacStart; i >= opacEnd; i--) {
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	} else if(opacStart < opacEnd) {
		for(i = opacStart; i <= opacEnd; i++)
			{
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	}
}

//change the opacity for different browsers
function changeOpac(opacity, id) {
	var object = document.getElementById(id).style;
	object.opacity = (opacity / 100);
	object.MozOpacity = (opacity / 100);
	object.KhtmlOpacity = (opacity / 100);
	object.filter = "alpha(opacity=" + opacity + ")";
}

function shiftOpacity(id, millisec) {
	//if an element is invisible, make it visible, else make it ivisible
	if(document.getElementById(id).style.opacity == 0) {
		opacity(id, 0, 100, millisec);
	} else {
		opacity(id, 100, 0, millisec);
	}
}

function currentOpac(id, opacEnd, millisec) {
	//standard opacity is 100
	var currentOpac = 100;

	//if the element has an opacity set, get it
	if(document.getElementById(id).style.opacity < 100) {
		currentOpac = document.getElementById(id).style.opacity * 100;
	}

	//call for the function that changes the opacity
	opacity(id, currentOpac, opacEnd, millisec)
}

function preload() {
  // para el globo de contacto
  document.getElementById("ctc").link = '1';

  preload_image_object = new Image();
  // set image url
  image_url = new Array();
  image_url[0] = "images/bgrci.jpg";
  image_url[1] = "images/bgrmi.jpg";
  image_url[2] = "images/bgrcie.jpg";
  image_url[3] = "images/bgrseti.jpg";
  image_url[4] = "images/bgrpes.jpg";
  image_url[5] = "images/bgrse.jpg";
  image_url[6] = "images/bgrsp.jpg";
  image_url[7] = "images/bgrnc.jpg";
  image_url[8] = "images/bgrsc.jpg";

  var i = 0;
  for(i=0; i<=3; i++)
  preload_image_object.src = image_url[i];

  // day by day banner
  var d = new Date()
  var date = d.getDate()
  
  if (date == 1) { bnrimg = "images/bgr1.jpg"; }
  else if (date == 2 ) { bnrimg = "images/bgr2.jpg"; }
  else if (date == 3 ) { bnrimg = "images/bgr3.jpg"; }
  else if (date == 4 ) { bnrimg = "images/bgr4.jpg"; }
  else if (date == 5 ) { bnrimg = "images/bgr5.jpg"; }
  else if (date == 6 ) { bnrimg = "images/bgr1.jpg"; }
  else if (date == 7 ) { bnrimg = "images/bgr2.jpg"; }
  else if (date == 8 ) { bnrimg = "images/bgr3.jpg"; }
  else if (date == 9 ) { bnrimg = "images/bgr4.jpg"; }
  else if (date == 10 ) { bnrimg = "images/bgr5.jpg"; }
  else if (date == 11 ) { bnrimg = "images/bgr1.jpg"; }
  else if (date == 12 ) { bnrimg = "images/bgr2.jpg"; }
  else if (date == 13 ) { bnrimg = "images/bgr3.jpg"; }
  else if (date == 14 ) { bnrimg = "images/bgr4.jpg"; }
  else if (date == 15 ) { bnrimg = "images/bgr5.jpg"; }
  else if (date == 16 ) { bnrimg = "images/bgr1.jpg"; }
  else if (date == 17 ) { bnrimg = "images/bgr2.jpg"; }
  else if (date == 18 ) { bnrimg = "images/bgr3.jpg"; }
  else if (date == 19 ) { bnrimg = "images/bgr4.jpg"; }
  else if (date == 20 ) { bnrimg = "images/bgr5.jpg"; }
  else if (date == 21 ) { bnrimg = "images/bgr1.jpg"; }
  else if (date == 22 ) { bnrimg = "images/bgr2.jpg"; }
  else if (date == 23 ) { bnrimg = "images/bgr3.jpg"; }
  else if (date == 24 ) { bnrimg = "images/bgr4.jpg"; }
  else if (date == 25 ) { bnrimg = "images/bgr5.jpg"; }
  else if (date == 26 ) { bnrimg = "images/bgr1.jpg"; }
  else if (date == 27 ) { bnrimg = "images/bgr2.jpg"; }
  else if (date == 28 ) { bnrimg = "images/bgr3.jpg"; }
  else if (date == 29 ) { bnrimg = "images/bgr4.jpg"; }
  else if (date == 30 ) { bnrimg = "images/bgr5.jpg"; }
  else { bnrimg = "images/bgr3.jpg"; }
  
  document.getElementById("blenddiv").style.backgroundImage = "url(" + bnrimg + ")";
  document.getElementById("blendimage").src = bnrimg;
}

function globalmove() {
  //document.getElementById("ctc").link = '2';

  //alert ( globalstate );

  if (document.getElementById("ctc").link == '1') {
   document.getElementById("ctc").src = 'images/cona.png';
   var globimg = setTimeout(globalshow, 1500);
   document.getElementById("ctc").link = '2';
  } else {
   //alert ('me cierro');
   //document.getElementById("ctc").src = 'images/logo2.gif';

   document.getElementById("contactFRM").style.visibility = 'hidden';
   var globimg = setTimeout(globalhide, 1400);
   document.getElementById("ctc").link = '1';
  };

}

function globalshow() {
  if (document.getElementById("logo2").style.display == 'block') {
    if (document.getElementById("ctc").link == '2') {
      document.getElementById("contactFRM").style.visibility = 'visible';
    };
  };
}

function globalhide() {
  document.getElementById("ctc").src = 'images/logo2.gif';
}