function open_step(url, formname)
{
	
	var cpw_code = document[formname].cpw_code.value;
	var carmaker_code = document[formname].maker_code.value;
	var carbrand_code = document[formname].carbrand_code.value;
	
	var mk_color_code = '';
	if(typeof document[formname].mk_color_code.options != 'undefined')
	{
		mk_color_code = document[formname].mk_color_code.options[document[formname].mk_color_code.selectedIndex].value;
	}
	else if(typeof document[formname].mk_color_code.length == 'undefined')
		mk_color_code = document[formname].mk_color_code.value;
	else
		for(var ii=0;ii<document[formname].mk_color_code.length;ii++)
		{
			if(document[formname].mk_color_code[ii].checked)
				mk_color_code = document[formname].mk_color_code[ii].value;
		}
	
	return popup(url, {'mk_color_code':mk_color_code, 'cpw_code':cpw_code, 'maker_code':carmaker_code, 'carbrand_code':carbrand_code});
	
}

function change_img(cpw_code, color_obj)
{
	var mk_color_code = '';
	
	if(typeof color_obj == 'object')
	{
		if(color_obj.value)
			mk_color_code = color_obj.value;
		else
		{
			if(typeof color_obj.options != 'undefined')
			{
				mk_color_code = color_obj.options[color_obj.selectedIndex].value;
			}
			else if(typeof color_obj.length == 'undefined')
				mk_color_code = color_obj.value;
			else
				for(var ii=0;ii<color_obj.length;ii++)
				{
					if(color_obj[ii].checked)
						mk_color_code = color_obj[ii].value;
				}
		}
	}
	else
		mk_color_code = color_obj;
	
	var head = "wheelimg_" + cpw_code + "_";
	
	var imgs = document.getElementsByTagName('img');
	for(var ii=0;ii<imgs.length;ii++)
	{
		if(imgs[ii].id)
		{
			if(imgs[ii].id.substring(0, new String(head).length) == head)
			{
				var regs = imgs[ii].id.match(/_([0-9]+)_([0-9]+)/);
				if(imgs[ii].id == head + mk_color_code)
				{
					imgs[ii].style.display = 'inline';
					document.getElementById('wheelprice' + regs[0]).style.display = 'inline';
				}
				else
				{
					imgs[ii].style.display = 'none';
					document.getElementById('wheelprice' + regs[0]).style.display = 'none';
				}
			}
			
		}
	
	}
}

function init_img()
{
	var imgs = document.getElementsByTagName('img');
	
	var old_code = 0;
	
	var head = "wheelimg_";
	for(var ii=0;ii<imgs.length;ii++)
	{
		if(imgs[ii].id)
		{
			if(imgs[ii].id.substring(0, head.length) == head)
			{
				var regs = imgs[ii].id.match(/_([0-9]+)_([0-9]+)/);
				
				if(regs)
					if(old_code != regs[1])
					{
						change_img(regs[1], regs[2]);
						old_code = regs[1];
					}
			}
		}
	}
	
	
}