// JavaScript Document

function getParametro(nombre){
	var parametros=window.location.search;
	parametros=parametros.substr(1);
	parametros=parametros.split("&");
	for(i=0;i<parametros.length; i++){
		p=parametros[i];
		p=p.split("=");
		if(p[0]==nombre){
			return p[1];
		}
	}
	return "1";
}

function setParametro(nombre,valor){	
	var encontrado=false;
	var out=window.location.href.split("?");
	out=out[0]+"?";
	var parametros=window.location.search;
	parametros=parametros.substr(1);
	parametros=parametros.split("&");
	for(i=0;i<parametros.length; i++){
		p=parametros[i];
		p=p.split("=");
		out+=p[0]+"=";
		if(p[0]==nombre){
			out+=valor;
			encontrado=true;
		}else{
			out+=p[1];	
		}
		if(i<parametros.length-1){
			out+="&";
		}
	}
	if (encontrado==false){
		out+="&numPag="+valor;
	}
	return out;
}

function getLinkAnterior(){
	var n=getParametro("numPag");
	if(n<2){
		n=1;
		if(document.getElementById("buttonPrev")!=undefined){
			document.getElementById("buttonPrev").style.display="none";
		}
		if(document.getElementById("buttonPrevText")!=undefined){
			document.getElementById("buttonPrevText").style.display="none";
		}
	}else{
		n--;	
		if(document.getElementById("buttonPrev")!=undefined){
			document.getElementById("buttonPrev").style.display="inline";
		}
		if(document.getElementById("buttonPrevText")!=undefined){
			document.getElementById("buttonPrevText").style.display="inline";
		}
	}
	var l=setParametro("numPag",n);
	if(document.getElementById("buttonPrev")!=undefined){
		document.getElementById("buttonPrev").href=l;
	}
	if(document.getElementById("buttonPrevText")!=undefined){
		document.getElementById("buttonPrevText").href=l;
	}
}

var tope=1;

function getLinkSiguiente(){
	var n=getParametro("numPag");
	if(n>tope-1){
		n=tope;
		if (document.getElementById("buttonNext")!=undefined){
			document.getElementById("buttonNext").style.display="none";
		}
		if (document.getElementById("buttonNextText")!=undefined){
			document.getElementById("buttonNextText").style.display="none";
		}
	}else{
		n++;	
		if (document.getElementById("buttonNext")!=undefined){
			document.getElementById("buttonNext").style.display="inline";
		}
		if (document.getElementById("buttonNextText")!=undefined){
			document.getElementById("buttonNextText").style.display="inline";
		}
	}
	var l=setParametro("numPag",n);
	if (document.getElementById("buttonNext")!=undefined){
		document.getElementById("buttonNext").href=l;
	}
	if (document.getElementById("buttonNextText")!=undefined){
		document.getElementById("buttonNextText").href=l;
	}
}

function iniMonografic(){
	getLinkAnterior();
	getLinkSiguiente();
	if (tope==1) {
		if (document.getElementById("paginacioMonografic")!=undefined){
			document.getElementById("paginacioMonografic").style.display="none";
		}		
	}
}

addEvent(window, 'load', iniMonografic);