$(document).ready(function(){
	PromoClick('cnc',0);
	equalHeight($(".equalheights"),22);
});



function PromoSlideshow(StartFrom)
{
	var parts = new Array('cnc','glassproc','glasstgh','mirrors','painting','sandbl');

	for(var i=0, len=parts.length; i<len; ++i)
	{
		if ($('img#promo-arrow').attr('class') == 'selected_'+parts[i])
		{
			var CurrentNum = i;
		}
	}
	
	var newNum = CurrentNum;
	newNum = parseFloat(newNum);
	if (newNum == 5) {
		newNum = 0;
	} else {
		newNum++;
	}
	
	clearTimeout(slideshow);
	PromoClick(parts[newNum],0);

}




function PromoClick(name, pause)
{
	
	$('#promo-nav img').each(function(){
		if ($(this).attr('src').search('_h.png'))
		{
			$(this).attr('src', $(this).attr('src').replace('_h.png','.png'));
		}
	});
	$('#promo-nav img.'+name).attr('src', $('#promo-nav img.'+name).attr('src').replace('.png','_h.png'));
	
	$('img#promo-arrow').removeClass();
	$('img#promo-arrow').addClass('selected_'+name);
	$('#promo #promo-img div.text').hide();
	
	switch(name)
	{
		case 'cnc':
			var TextHtml = '<h2><a href="/cnc-processing.php" title="CNC Processing">CNC Processing</a></h2><p>Using the latest in Computerised Numerical Cutting (CNC) we are able to offer bespoke Glass with almost limitless possibilities in shape and glass thickness.<br/><a class="promolink" href="/cnc-processing" title="CNC Processing">Learn more about CNC Processing</a></p>';
			break;
		case 'glassproc':
			var TextHtml = '<h2><a href="/glass-processing.php" title="Glass Processing">Glass Processing</a></h2><p>In our factory we can offer many glass processing activities, these include 2no Schiatti polishing machines, which can polish 4mm up to 19mm glass.<br/><a class="promolink" href="/glass-processing" title="Glass Processing">Learn more about Glass Processing</a></p>';
			break;
		case 'glasstgh':
			var TextHtml = '<h2><a href="/glass-toughening.php" title="Glass Toughening">Glass Toughening</a></h2><p>Tempered glass has approximately 5 times the mechanical and thermal strength of annealed glass and can be used in many applications where a safety glass is required.<br/><a class="promolink" href="/glass-toughening" title="Glass Toughening">Learn more about Glass Toughening</a></p>';
			break;			
		case 'mirrors':
			var TextHtml = '<h2><a href="/mirrors.php" title="Mirrors">Mirrors</a></h2><p>High quality silvered in both 4mm and 6mm is always used to produce our mirrors. All our mirrors are individually made to suit the customer requirements. <br/><a class="promolink" href="/mirrors" title="Mirrors">Learn more about Mirrors</a></p>';
			break;
		case 'painting':
			var TextHtml = '<h2><a href="/glass-painting.php" title="Glass Painting">Glass Painting</a></h2><p>Glass painting is one of the most exciting applications to glass that has happened in the last 20 years, but partially has come to the fore during the last 10 years<br/><a class="promolink" href="/painting" title="Glass Painting">Learn more about Glass Painting</a></p>';
			break;
		case 'sandbl':
			var TextHtml = '<h2><a href="/sand-blasting.php" title="Sand Blasting">Sand Blasting</a></h2><p>We have many standard designs for boarders or pictures and text can be used to create a completely individual design. We can also apply a RITEC Clearshield coating which is especially effective on sandblasting.<br/><a class="promolink" href="/sand-blasting" title="Sand Blasting">Learn more about Sand Blasting</a></p>';
			break;	
	}
	
	$('#promo #promo-img div.text').html(TextHtml);
	$('#promo #promo-img div.text').removeClass().addClass('text selected_'+name);
	$('#promo #promo-img div.text').fadeIn();
	
	if (pause==1)
	{
		clearTimeout(slideshow);
	}
	else
	{
		slideshow = setTimeout("PromoSlideshow('"+name+"')",8000);	
	}
	
		

};

function equalHeight(group, offset) {
    var tallest = 0;
    group.each(function() {
        var thisHeight = $(this).innerHeight();
        if(thisHeight > tallest) {
            tallest = thisHeight;
        }
    });
	if (offset) { group.height(tallest - offset); }
	else { group.height(tallest); }
	
}
;