var img;
var div;

function mostraImmagine(){
		
		img = document.getElementById("ander_cart");
	  div = document.getElementById("div_ander_cart");
		
		img.src = "image/ander_cart"+Math.ceil(3*Math.random())+".jpg";
		
		setTimeout("mostraDiv()",2000);
		
		setTimeout("nascondiImmagine()",10000);

}

function mostraDiv(){
		
		var myWidth = 0, myHeight = 0;
  	
		if( typeof( window.innerWidth ) == 'number' ) {//Non-IE
        myWidth = window.innerWidth;
    		myHeight = window.innerHeight;
  	} 
		else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {//IE 6+ in 'standards compliant mode'
        myWidth = document.documentElement.clientWidth;
        myHeight = document.documentElement.clientHeight;
 		} 
		else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {//IE 4 compatible
        myWidth = document.body.clientWidth;
        myHeight = document.body.clientHeight;
  	}
		
		div.style.top = ((myHeight / 2) - (391/2))+"px";
		div.style.left = ((myWidth / 2) - (800/2))+"px";
    div.style.display = "block";

}

function nascondiImmagine(){

    div.style.display = "none";

}