var tab = {

init: function(){

var pages = this.setup.pages;
pages[0].style.display = 'block';

for(i=0; i<pages.length; i++) {
if(i !== 0) pages[i].style.display = 'none';
}
},
	
showpage: function(num){
var pages = this.setup.pages;
				
for(var i=0; i<pages.length-1; i++) {
if(i == num) {
pages[num].style.display = 'block';
pages[4].style.display = 'block';
}
else{
pages[i].style.display = 'none';
}
}
}
}