function formCheck()
{
	var no_of_drpdwn = 0;
	var no_of_orders = 0;
	for (var n=0; n < document.forms[0].length; n++)
	{
		if (document.forms[0].elements[n].type=='select-one')
		{
			no_of_drpdwn++;
			if (document.forms[0].elements[n].selectedIndex == 0)
			{
				no_of_orders++;
			}	
		}			
	}
	if (no_of_drpdwn == no_of_orders)
	{
		alert('Please select your purchase items before continue.');
	}
	else
	{
		return true;
	}
	return false;
}