function nav_over(design)
{
	var id_off = design + '_off';
	var id_on = design + '_on';
	
	document.getElementById(id_off).style.display = 'none';
	document.getElementById(id_on).style.display = 'block';	
}

function nav_out(design)
{
	var id_off = design + '_off';
	var id_on = design + '_on';
	
	document.getElementById(id_off).style.display = 'block';
	document.getElementById(id_on).style.display = 'none';	
}

function intro()
{
	var intro_timer = setTimeout("document.getElementById('intro').style.display = 'none'; document.getElementById('main_content').style.display = 'block';", 11000);
}

function clear()
{
	var categories = new Array("architees", "abstractees", "sportees", "noveltees", "greentees", "identitees", "dtees", "ttees", "animalitees");
	var id_off;
	var id_on;
	
	for (i = 0; i < 9; i++)
	{
		id_off = categories[i] + '_off';
		id_on = categories[i] + '_on';

		document.getElementById(id_off).style.display = 'block';
		document.getElementById(id_on).style.display = 'none';			
	}
}

var c = 208;
var t;

function change_iframe(dir)
{
	if (dir == 'on')
	{
		clearTimeout(t);	
		loopCount('on');
	}
	else if (dir == 'off')
	{
		clearTimeout(t);
		document.getElementById('close_iframe').style.display = 'none';					
		loopCount('off');
	}

}

function loopCount(dir)
{
	if (dir == 'on')
	{
		if(c <= 510)
		{
			document.getElementById('spreadshirt_iframe').style.height = c + 'px';
			c = c + 10;
			t = setTimeout("loopCount('on')", 1);
		}
		else
		{
			clearTimeout(t);
			document.getElementById('close_iframe').style.display = 'block';		
		}
	}
	else if (dir == 'off')
	{
		if(c >= 208)
		{
			document.getElementById('spreadshirt_iframe').style.height = c + 'px';
			c = c - 10;
			t = setTimeout("loopCount('off')", 1);
		}
		else
		{
			clearTimeout(t);
		}
	}
	
}

function change_design_img(file)
{
	document.getElementById('design_center').src = 'images/designs/' + file;
}