function showObj(num) {
  
  if (odiv[num].style.display=="none") {
    hideAll();
    odiv[num].style.display="inline";
	oodiv[num].style.display="none";
  }
  else {
    odiv[num].style.display="none";
	oodiv[num].style.display="inline";
  }
}
function hideAll() {
  for(i=0;i<odiv.length;i++) {
    odiv[i].style.display="none";
	oodiv[i].style.display="inline";
  }
}
function gotoPage(pages,url)
{
	var formatString;
	var gotopage=document.getElementById('gotopage')
	if(gotopage.value=="")
	{
		alert('Please input valid page number !');
		return;	
	}
	if(isNaN(gotopage.value))
	{
		alert('Please input valid page number !');
		return;
	}  
	var page = eval(gotopage.value);
	if(page < 1 || page > pages)
	{
		alert('Please input valid page number !');
		return;
	}
	document.location = "/product/"+url+"-"+page+".html";
}