var contarFotos = 1;
var titulos = new Array("VIGUETA Y BOVEDILLA","VIGA TUBULAR","TRABE TA","TRABE T INVERTIDA","PLACA ALVEOLAR","GRADAS","VIGUETA Y BOVEDILLA");
var loopFotos = true;
var tiempoLoop;

function seccionLoad(){
	if(navigator.appName.toString().search("Explorer") == "-1"){
		tiempoLoop = setTimeout("cambioFoto();",8000);
		//alert(navigator.appName.toString());
	}
	document.getElementById("cuerpoContenido").style.background = "url('imagenes/sello.png') no-repeat 680px 250px";
}

function cambioFoto(){
	
	disminuir(contarFotos);
	document.getElementById("titulosImgInicio").innerHTML = "<h1>" + titulos[contarFotos] + "</h1>";
	if(contarFotos == 0){
		contarFotos = 1;
	}
	if(contarFotos == 6){
		contarFotos = 1;
		setTimeout("document.getElementById('1').style.width = '850px';",1000);
		setTimeout("document.getElementById('2').style.width = '850px';",1000);
		setTimeout("document.getElementById('3').style.width = '850px';",1000);
		setTimeout("document.getElementById('4').style.width = '850px';",1000);
		setTimeout("document.getElementById('5').style.width = '850px';",1000);
		setTimeout("document.getElementById('6').style.width = '850px';",1000);
		
	}else{
		contarFotos++;
	}
	if(loopFotos == true){
		tiempoLoop = setTimeout("cambioFoto();",8000);
	}
	if(contarFotos == 1){
		document.getElementById("btnAtrasInicio").disabled = "disabled";
	}else{
		document.getElementById("btnAtrasInicio").removeAttribute("disabled");
	}
}

function disminuir(idObjeto){
	var iDism = 0;
	for(iDism = 0; iDism < 101; iDism++){
		setTimeout("document.getElementById('" + idObjeto.toString() + "').style.width = '" + (850 - (iDism * 17)) + "px'; ",(iDism * 20));
	}
	if(document.getElementById('1').style.width == '850px'){
		document.getElementById('1').style.width = '0px'
	}
}

function crecer(idObjeto){
	
	if(idObjeto == 1){
		document.getElementById("btnAtrasInicio").disabled = "disabled";
	}
	document.getElementById("titulosImgInicio").innerHTML = "<h1>" + titulos[idObjeto - 1] + "</h1>";
	var iDism = 0;
	for(iDism = 0; iDism < 51; iDism++){
		setTimeout("document.getElementById('" + idObjeto.toString() + "').style.width = '" + (iDism * 17) + "px'; ",(iDism * 20));
	}
	contarFotos--;
}