var EMA=(typeof(EMA)=="undefined")?{
	/*EMA needs to be put externally if used on more pages*/
	addEvent:function(obj, evType, fn){
		if (obj.addEventListener){ 
			obj.addEventListener(evType, fn, false); 
			return true; 
		} else if (obj.attachEvent){ 
			var r = obj.attachEvent("on"+evType, fn); 
			return r; 
		} else { 
			return false; 
		} 
	},
	cancelEvents:function(e){
		if (!e){e = window.event;}
			e.returnValue = false;
		try {
			e.preventDefault();
		} catch(e) {}
	},
	$:function(i){
		return document.getElementById(i);
	},
	$c:function(){//getElementsByClassName(className,node[optional])
		var args=arguments;
		var a=[],re=new RegExp('(^| )'+args[0]+'( |$)'),n=(args.length<2)?document:args[1],els=n.getElementsByTagName("*");
		for(var i=0,j=els.length;i<j;i++){if(re.test(els[i].className)){a.push(els[i])}}
		return a;
	},
	$t:function(){//getElementsByTagName(tagName,node[optional])
		var args=arguments;
		var n=(args.length<2)?document:args[1];
		return n.getElementsByTagName(args[0]);
	}
}:EMA;

EMA.boxes=(function(){
	var clickHandles=function(){
		var myimages=new Array();
		myimages[0]="visus/splash_visu01.jpg";
		myimages[1]="visus/splash_visu02.jpg";
		myimages[2]="visus/splash_visu03.jpg";
		myimages[3]="visus/splash_visu04.jpg";
		myimages[4]="visus/splash_visu05.jpg";
		
		var ry=Math.floor(Math.random()*5);
		document.getElementById("visu").src=myimages[ry];
	}
	return {
		init:function(){
			clickHandles();
		}
	}
})()
EMA.addEvent(window,"load",EMA.boxes.init);