<!-- hide from old browsers

/*

 
function getValue(varname)

{

	var url = window.location.href;


	var qparts = url.split("?");


	if (qparts.length == 0)

	{

		return "";

	}


	// Then find the querystring, everything after the ?

	var query = qparts[1];


	// Split the query string into variables (separates by &s)

	var vars = query.split("&");


	// Initialize the value with "" as default

	var value = "";


	// Iterate through vars, checking each one for varname

	for (i=0;i<vars.length;i++)

	{

		// Split the variable by =, which splits name and value

		var parts = vars[i].split("=");

    
		// Check if the correct variable

		if (parts[0] == varname)

		{

			// Load value into variable

			value = parts[1];


			break;

		}

	}

  
	// Convert escape code

	value = unescape(value);


	// Convert "+"s to " "s

	value.replace(/\+/g," ");


	// Return the value

	return value;

}


// end hide -->


var page = getValue("page");

var idnum = getValue("idnum");

var numm = getValue("numm");

*/

function ponIssue(page, idnum, numm) {


if (numm == "")

{

	var numm_link = "https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=3674939";

}

else

{

	var numm_link = "https://www.paypal.com/cgi-bin/webscr?cmd=_xclick&business=JWTCUTQVTSRYS&lc=ES&item_name=ARTECONTEXTO%20N%ba"+numm+ "&amount=18%2e00&currency_code=EUR&cn=A%c3%b1adir%20instrucciones%20especiales%20para%20el%20vendedor&no_shipping=2&undefined_quantity=1&weight_unit=lbs&bn=PP%2dBuyNowBF%3abtn_buynowCC_LG%2egif%3aNonHosted";

}


if (idnum == "")

{

	idnum= "090209153829-07537c6c0dda440a9eca809a01c7d132";

}


var __htmlcontainer_domain = "issuu.com";

var noflash_url = "http://www.artecontexto.com/nonflash.html";

//==============================================================================

//=== SERVER SIDE OVERRIDES 

//==============================================================================


//---Carrier protocol

var __protocol = "http://";


//---domain 

var __domain = "issuu.com";


//---Specifies the minimum required version of flash for this page to show

var __req_flash = "9.0.0";


//==============================================================================

//=== REDIRECT TO ERROR PAGE IF FLASH VERSION IS BELOW REQUIRED VERSION

//==============================================================================


if(!swfobject.hasFlashPlayerVersion(__req_flash))

{

	window.location.href= noflash_url;

}


//==============================================================================

//=== Insert flash

//==============================================================================


//------------------------------------------------------------------------------

//--- Embed flash object    

//------------------------------------------------------------------------------    

var bl_swfUrl         = "http://static.issuu.com/webembed/viewers/style1/v1/IssuuViewer.swf";

var bl_domId         = "flashcontent";

var bl_width         = "750";

var bl_height         = "550";

var bl_flashver        = __req_flash;        //flex publishing version

var bl_flashvars    = {

	bl_domain: "issuu.com",

	bl_query: "mode%3Dembed%26layout%3Dhttp%3A%2F%2Fwww.artecontexto.com%2Fetc%2Fissuuthemes%2Flayout.xml",

	bl_referrer: "",

	bl_viewuser: "artecontexto"

	,

	jsAPIClientDomain:"www.artecontexto.com"

	,

	layout: "http%3A%2F%2Fwww.artecontexto.com%2Fetc%2Fissuuthemes%2Flayout.xml"

	,

	mode: "embed"

	,

	loadingInfoText: "ARTECONTEXTO"

	,

	documentId: idnum

	,

	pageNumber: page

};

var    bl_params    = {

	allowfullscreen: "true",

	menu: "false",

	salign: "tl",

	scale: "noscale",

	allowscriptaccess: "always",

	base: "http://static.issuu.com/site/"

};

var    bl_attr      = { 

	id: bl_domId,

	name: bl_domId

};                      


swfobject.embedSWF(bl_swfUrl, bl_domId, bl_width, bl_height,

	bl_flashver, {}, bl_flashvars, bl_params, bl_attr);


	}