function compare()
{
	var i;
	var c = 0;
	var s = '';

	for (i=0; i<document.products.compare.length; i++)
	{
		if (document.products.compare[i].checked)
		{
			s = s + document.products.compare[i].value + ',';
			c++;
		}
	}
	
	if (c <= 1)
	{
		alert('Select two or more products to compare.');
	}
	else
	{
		location.href = '/products.cfm/compare/' + s.substr(0,s.length-1);
	}

}