// JavaScript Document

function changepic( id , src , alt , number ) {
var i;

document.getElementById(id).src = src;
document.getElementById(id).alt = alt;

var links = number.parentNode.parentNode.getElementsByTagName("A");

for ( i = 0; i < links.length; i++ ) {
	links[i].style.background = "#DDDBDC";
}

number.style.background = '#FFFFFF';

return true;
}

function changehref( id , href , number ) {

var i;
document.getElementById(id).href = href;
return true;
}

function proximo_enlace(number,limite){
	
	var links = number.parentNode.parentNode.getElementsByTagName("A");
	if(parseInt(links[6].innerHTML)<limite){
		for(var j=1;j<links.length-1;j++){	
			links[j].innerHTML=parseInt(links[j].innerHTML)+1;

			
			if(links[j].style.background=='#ffffff'){
				links[j].style.background='#dddbdc';
				if(j-1!=0)
					links[j-1].style.background='#ffffff';
			}
			
		}
	}
}

function anterior_enlace(number,limite){
	
	var links = number.parentNode.parentNode.getElementsByTagName("A");
	if(parseInt(links[1].innerHTML)>1){
		k=0;
		for(var j=1;j<links.length-1;j++){
			if(links[j].style.background=='#ffffff'){
				k=j;
			}
			links[j].innerHTML=parseInt(links[j].innerHTML)-1;
			
		}
		if(k!=0){
			links[k].style.background='#dddbdc';
			if(k+1!=links.length-1)
			links[k+1].style.background='#ffffff';
		}
			
	
	}
	
}