var datascroll = 0;

function initscroll() {
	width = window.screen.availWidth;
	scroll_size = 310;      // divDataC.height - 10
	if (width == 800) scroll_size = 226;
	datascroll = new ScrollLayer("datascroll", "datal", scroll_size, 2);
	if (datascroll.scroll_length > 0){
		// Mostrar los botones
		if (document.all){
			obj = document.all("sctrl");
		}else{
			obj = document.getElementById("sctrl");
		}
		if (obj) obj.style.visibility = "visible";
	}
}

function mouseOut(){
	datascroll.scroll_stat = 0;
}

// 1 - scroll up. 2 - scroll down
function mouseOver(tipus){
	if (datascroll != 0) {
		datascroll.scroll_stat = 1;
		datascroll.doScroll(tipus);
	}
}