function popUp(theURL,winName,scrollbar,width,height) {
	var iMyWidth;
	var iMyHeight;
	iMyWidth = (window.screen.width/2); 
	iMyWidth= iMyWidth - (width/2)
	iMyHeight = (window.screen.height/2) ;
	iMyHeight= iMyHeight - (height/2);
	window.open(theURL,winName,"scrollbars="+scrollbar+",width="+width+",height="+height+",left="+iMyWidth+",top="+iMyHeight+",screenX="+iMyWidth+",screenY="+iMyHeight);
}

function comprobarFormFoto(){
	
	var formulario = document.formFoto;
	
	if (formulario.autor.value.length<1 || formulario.comentario.value.length<1 || formulario.foto.value.length<1){
		var MSG="Para poder realizar el envío es necesario que rellene todos los campos, gracias.";
		alert(MSG);
	} else {
		if (checkImage(formulario.foto)){
			formulario.submit();
		}else{
			var MSG="Únicamente estan permitidas las siguientes extensiones: jpg, gif o png.";
			alert(MSG);
		}
	}
}

function checkImage(which) {
	var OK = new Array ('.jpg', '.gif', '.png', '.JPG', '.GIF', '.PNG', '.jpeg', '.JPEG');
	var theFile = which.value; // i.e. the file name passed to the function
	var fileOK = 0;
	for (i = 0; i < OK.length; i++) {
		if (theFile.indexOf(OK[i]) != -1) {
			fileOK = 1; // one of the file extensions found
		}
	}
	if (fileOK == 1) {
		return true;
	}else{
		return false;
	}
}

function comprobarFormEnvia(){
	
	var formulario = document.formEnvia;
	
	if (formulario.nombre.value.length<1 || formulario.email.value.length<1 || formulario.nombre_amigo.value.length<1 || formulario.email_amigo.value.length<1 || formulario.comentario.value.length<1){
		var MSG="Para poder realizar el envío es necesario que rellene todos los campos, gracias.";
		alert(MSG);
	} else {
		var filter=/^[A-Za-z][A-Za-z0-9_\.\-]*@[A-Za-z0-9_]+\.[A-Za-z0-9_.]+[A-za-z]$/;
		if (!filter.test(formulario.email.value || !filter.test(formulario.email_amigo.value))){
			var MSG="Ingrese una dirección de correo válida.";
			alert(MSG);
		} else {
			formulario.submit();
		}
	}
}

function updateTextarea (value){
	document.formEnvia.comentario.value = ""
	var textOrig = value;
	var parrafos=textOrig.split("\\n");
	for(i=0;i<parrafos.length;i++) {
		document.formEnvia.comentario.value += parrafos[i] + "\n";
		//alert (parrafos[i]);
		//alert (document.formEnvia.comentario.value);
	}
	
	//document.formEnvia.comentario.value = textFinal;
	
	if (value != ""){
		document.formEnvia.comentario.readOnly = true;
		//document.formEnvia.comentario.disabled = true;
	}else{
		document.formEnvia.comentario.readOnly = false;
		//document.formEnvia.comentario.disabled = false;
	}
}

function escribe() {
    var textazo = document.getElementById('exta').value;
    var parrafos=textazo.split(/\r\r|\n\r|\r\n|\r|\n/);
    for(i=0;i<parrafos.length;i++) {
    alert(parrafos[i]);
    document.getElementById('exta2').value += parrafos[i] + "\n";
    alert(document.getElementById('exta2').value + ", " + i);
    }
    }

function ReverseContentDisplay(d) {
	if(document.getElementById(d).style.display == "block") {
		document.getElementById(d).style.display = "none"; 
		document.getElementById("menucuelga").innerHTML = "<a href=\"javascript:ReverseContentDisplay('cuelga')\"><img src=\"img/cuelga.gif\" border=\"0\" onmouseover=\"this.src='img/cuelga_gris.gif'\" onmouseout=\"this.src='img/cuelga.gif'\"/></a>";
		//document.getElementById("menuinvita").innerHTML = "<a href=\"javascript:ReverseContentDisplay('invita')\"><img src=\"img/invita.gif\" width=\"144\" height=\"96\" border=\"0\" /></a>";
		document.getElementById("menuquees").innerHTML = "<a href=\"javascript:ReverseContentDisplay('quees')\"><img src=\"img/quees.gif\" width=\"144\" height=\"96\" border=\"0\" onmouseover=\"this.src='img/quees_gris.gif'\" onmouseout=\"this.src='img/quees.gif'\"/></a>";
		//document.getElementById("menucamiseta").innerHTML = "<a href=\"javascript:ReverseContentDisplay('camiseta')\"><img src=\"img/camiseta.gif\" width=\"144\" height=\"96\" border=\"0\" /></a>";
		document.getElementById("menubarcelona").innerHTML = "<a href=\"javascript:ReverseContentDisplay('barcelona')\"><img src=\"img/barcelona.gif\"  border=\"0\" onmouseover=\"this.src='img/barcelona_gris.gif'\" onmouseout=\"this.src='img/barcelona.gif'\"/></a>";
		//document.getElementById("menusms").innerHTML = "<a href=\"javascript: popUp('sms/index.php','SMS','no','430','280');\"><img src=\"img/invitaSMS.gif\" width=\"144\" height=\"96\" border=\"0\" /></a>";
	}else{
		document.getElementById("cuelga").style.display = "none";
		//document.getElementById("invita").style.display = "none";
		document.getElementById("quees").style.display = "none";
		//document.getElementById("camiseta").style.display = "none";
		document.getElementById("barcelona").style.display = "none";
		
		document.getElementById("menucuelga").innerHTML = "<a href=\"javascript:ReverseContentDisplay('cuelga')\"><img src=\"img/cuelga.gif\" border=\"0\" onmouseover=\"this.src='img/cuelga_gris.gif'\" onmouseout=\"this.src='img/cuelga.gif'\"/></a>";
		//document.getElementById("menuinvita").innerHTML = "<a href=\"javascript:ReverseContentDisplay('invita')\"><img src=\"img/invita_gris.gif\" width=\"144\" height=\"96\" border=\"0\" /></a>";
		document.getElementById("menuquees").innerHTML = "<a href=\"javascript:ReverseContentDisplay('quees')\"><img src=\"img/quees.gif\" width=\"144\" height=\"96\" border=\"0\" onmouseover=\"this.src='img/quees_gris.gif'\" onmouseout=\"this.src='img/quees.gif'\"/></a>";
		//document.getElementById("menucamiseta").innerHTML = "<a href=\"javascript:ReverseContentDisplay('camiseta')\"><img src=\"img/camiseta_gris.gif\" width=\"144\" height=\"96\" border=\"0\" /></a>";
		document.getElementById("menubarcelona").innerHTML = "<a href=\"javascript:ReverseContentDisplay('barcelona')\"><img src=\"img/barcelona.gif\" border=\"0\" onmouseover=\"this.src='img/barcelona_gris.gif'\" onmouseout=\"this.src='img/barcelona.gif'\"/></a>";
		//document.getElementById("menusms").innerHTML = "<a href=\"javascript: popUp('sms/index.php','SMS','no','430','280');\"><img src=\"img/invitaSMS_gris.gif\" width=\"144\" height=\"96\" border=\"0\" /></a>";
									
		document.getElementById(d).style.display = "block";
		document.getElementById("menu"+d).innerHTML = "<img src=\"img/"+d+"_gris.gif\" border=\"0\" />";
	}
}

function ReverseContentDisplayDetail(d) {
	dnorm = d.replace(/Det/,"");
	if(document.getElementById(d).style.display == "block") {
		document.getElementById(d).style.display = "none"; 
		//document.getElementById("menucuelga").innerHTML = "<a href=\"javascript:ReverseContentDisplayDetail('cuelgaDet')\"><img src=\"img/cuelga.gif\" width=\"144\" height=\"96\" border=\"0\" /></a>";
		//document.getElementById("menuinvita").innerHTML = "<a href=\"javascript:ReverseContentDisplayDetail('invitaDet')\"><img src=\"img/invita.gif\" width=\"144\" height=\"96\" border=\"0\" /></a>";
		document.getElementById("menuquees").innerHTML = "<a href=\"javascript:ReverseContentDisplayDetail('queesDet')\"><img src=\"img/quees.gif\" width=\"144\" height=\"96\" border=\"0\" /></a>";
		//document.getElementById("menucamiseta").innerHTML = "<a href=\"javascript:ReverseContentDisplayDetail('camisetaDet')\"><img src=\"img/camiseta.gif\" width=\"144\" height=\"96\" border=\"0\" /></a>";
		//document.getElementById("menubarcelona").innerHTML = "<a href=\"javascript:ReverseContentDisplayDetail('barcelonaDet')\"><img src=\"img/barcelona.gif\" width=\"144\" height=\"96\" border=\"0\" /></a>";
		//document.getElementById("menusms").innerHTML = "<a href=\"javascript: popUp('sms/index.php','SMS','no','430','280');\"><img src=\"img/invitaSMS.gif\" width=\"144\" height=\"96\" border=\"0\" /></a>";
	}else{
		document.getElementById("cuelgaDet").style.display = "none";
		//document.getElementById("invitaDet").style.display = "none";
		document.getElementById("porqueDet").style.display = "none";
		document.getElementById("queesDet").style.display = "none";
		//document.getElementById("camisetaDet").style.display = "none";
		document.getElementById("barcelonaDet").style.display = "none";
		
		//document.getElementById("menucuelga").innerHTML = "<a href=\"javascript:ReverseContentDisplayDetail('cuelgaDet')\"><img src=\"img/cuelga_gris.gif\" width=\"144\" height=\"96\" border=\"0\" /></a>";
		//document.getElementById("menuinvita").innerHTML = "<a href=\"javascript:ReverseContentDisplayDetail('invitaDet')\"><img src=\"img/invita_gris.gif\" width=\"144\" height=\"96\" border=\"0\" /></a>";
		document.getElementById("menuquees").innerHTML = "<a href=\"javascript:ReverseContentDisplayDetail('queesDet')\"><img src=\"img/quees_gris.gif\" width=\"144\" height=\"96\" border=\"0\" /></a>";
		//document.getElementById("menucamiseta").innerHTML = "<a href=\"javascript:ReverseContentDisplayDetail('camisetaDet')\"><img src=\"img/camiseta_gris.gif\" width=\"144\" height=\"96\" border=\"0\" /></a>";
		//document.getElementById("menubarcelona").innerHTML = "<a href=\"javascript:ReverseContentDisplayDetail('barcelonaDet')\"><img src=\"img/barcelona_gris.gif\" width=\"144\" height=\"96\" border=\"0\" /></a>";
		//document.getElementById("menusms").innerHTML = "<a href=\"javascript: popUp('sms/index.php','SMS','no','430','280');\"><img src=\"img/invitaSMS_gris.gif\" width=\"144\" height=\"96\" border=\"0\" /></a>";
		
									
		document.getElementById(d).style.display = "block";
		document.getElementById("menu"+dnorm).innerHTML = "<a href=\"javascript:ReverseContentDisplayDetail('"+d+"')\"><img src=\"img/"+dnorm+".gif\" width=\"144\" height=\"96\" border=\"0\" /></a>";
		document.getElementById(dnorm+"cerrar").innerHTML = "<a href=\"javascript:ReverseContentDisplayDetail('"+d+"')\"><img src='img/cerrar.gif' border=\"0\"/></a>";
		
	}
}