var model_list_current = null;
var model_list_enlarge_img = null;

function showenlarged()
{
	if(null!=model_list_enlarge_img)
	{
		document.getElementById('enlarged_img').src = 'img/models/large/'+model_list_enlarge_img;
		document.getElementById('enlarged').style.display='block';
	}
	else
	{
		alert("Please choose a model.");
	}
}

function hideenlarged()
{
	document.getElementById('enlarged_img').src = '';
	document.getElementById('enlarged').style.display='none';
}

function thumbclick(o,f)
{
	if(o!=model_list_current) unchoosemodel();
	var img = document.getElementById('img'+o);
	img.src = 'img/models/medium/'+f;
	model_list_current = o;
	model_list_enlarge_img = f;
	document.getElementById('model'+o).className = 'model_item model_hilited';	
	document.getElementById('zlink').href='z-card.aspx?id='+o;
	document.getElementById('clink').href='contact.aspx?id='+o;
}

function choosemodel(o,f)
{
	unchoosemodel();
	thumbclick(o,f);
	model_list_current = o;
	model_list_enlarge_img = f;
	document.getElementById('model'+o).className = 'model_item model_hilited';	
}

function unchoosemodel()
{
	if(null!=model_list_current)
	{
		document.getElementById('model'+model_list_current).className = 'model_item';	
	}
}