var photos=new Array('../Runtime/Uploads/ProductCategoryImages/Prod1.jpg','../Runtime/Uploads/ProductCategoryImages/Prod2.jpg','../Runtime/Uploads/ProductCategoryImages/refinery.jpg','../Runtime/Uploads/ProductCategoryImages/CalciumChloride.jpg');
var Desc=new Array('Oxidation Catalysts','Gas Purification','Gas Drying','Calcium Chloride');
var PagePath=new Array('../Products/Default.aspx?id=NwA1AA==','../Products/Default.aspx?id=NgA4AA==','../Products/Default.aspx?id=NgA3AA==','../Products/Default.aspx?id=NgA2AA==');
var start=0;
var end=3
var current=start;
var doplay=true;
function previous()
{
current -= 1;
if(current < start)
current = end;
change();
}
function next()
{
current += 1;
if(current > end)
current = start;
change();
}
function change()
{
document.getElementById('photo').src = photos[current];
document.getElementById('desc').innerHTML = Desc[current];
document.getElementById('link').href = PagePath[current];
}