var scroll_altezze={"scroll_news":130, "scroll_appuntamenti":100};
var scroll_speed=0.3;
var scroll_interval=10;
var scroll_count=false;
var scroll_stop={"scroll_news":true, "scroll_appuntamenti":true};
var scroll_pos={"scroll_news":null, "scroll_appuntamenti":null};
var scroll_size={"scroll_news":0, "scroll_appuntamenti":0};
var scroll_timeout={"scroll_news":null, "scroll_appuntamenti":null};
var scroll_div={"scroll_news":null, "scroll_appuntamenti":null};

function makeNewsRotate(scroll) {
	scroll_div[scroll]=document.getElementById(scroll);
	if (scroll_div[scroll]!=null) {
		scroll_size[scroll]=scroll_div[scroll].offsetHeight;
		if (scroll_size[scroll]>scroll_altezze[scroll]) startScrolling(scroll);
	}
}

function moveScrolling(scroll) {
	scroll_pos[scroll]-=scroll_speed;
	scroll_div[scroll].style.top=scroll_pos[scroll]+"px";
	if (scroll_pos[scroll]<0 && scroll_pos[scroll]+scroll_size[scroll]<0) {
		scroll_pos[scroll]=scroll_altezze[scroll];
	}
}

function pauseScrolling(scroll) {
	if (scroll_timeout[scroll]!=null) {
		clearInterval(scroll_timeout[scroll]);
		scroll_timeout[scroll]=null;
	}
}

function startScrolling(scroll) {
	if (scroll_size[scroll]>scroll_altezze[scroll]) {
		if (scroll_pos[scroll]==null) scroll_pos[scroll]=scroll_altezze[scroll];
		scroll_div[scroll].style.top=scroll_pos[scroll]+"px";
		scroll_timeout[scroll]=setInterval("moveScrolling('"+scroll+"')", scroll_interval);
	}
}