var processingEffect;
var NavCatSelected=new Object();
var NavProcessing=new Object();

function navBlind(itemClicked){
	cat=itemClicked.name;
	selectedid=itemClicked.id;
	showDiv=selectedid+'_div';

	if(!NavProcessing[cat] && NavCatSelected[cat]!==selectedid){
		NavProcessing[cat]=1;
		elements=document.getElementsByTagName('area');

		for(var i = 0; i < elements.length; i++){ 
			if(elements[i].name==cat){
				
				linkid=elements[i].id;
		
				hidediv=document.getElementById(linkid+'_div');
				if(linkid && hidediv && hidediv.style.display=='block'){
					new Effect.BlindUp(hidediv, {duration:.5, queue: 'end' });
				}
			}
		}
		
		switch(selectedid){
			case "info_default":
				$('infoHeadImg').src="images/h3-what-we-do.gif";
			break;
			case "info_pre":
				$('infoHeadImg').src="images/h3-pre-production.gif";
			break;
			case "info_pro":
				$('infoHeadImg').src="images/h3-production.gif";
			break;
			case "info_post":
				$('infoHeadImg').src="images/h3-post-production.gif";
			break;
			case "info_del":
				$('infoHeadImg').src="images/h3-delivery.gif";
			break;
			case "info_lias":
				$('infoHeadImg').src="images/h3-liason.gif";
			break;
			case "info_graphics":
				$('infoHeadImg').src="images/h3-motion-design.gif";
			break;
		}
		
		new Effect.BlindDown(showDiv, {duration:.5, queue: 'end', afterFinish: function(){ NavProcessing[cat]=0; } });
		NavCatSelected[cat]=selectedid;

		jQuery('#Gallery').crossSlide({ sleep: 4, fade: 1 }, imageSet[selectedid]);
		
	}
}