/* flowScroll
********************/
function flowScroll(goLeft){
	var offset = (goLeft)?-5:5;
	var flowCut = document.getElementById("galerieprepa");
	flowCut.scrollLeft += offset;
}
function initFlowScroll(){
	var flow = document.getElementById("galeriedef");
	if(!flow) return;
	document.getElementById("flechegauche").onmouseover = function(){ scrollDirection = setInterval("flowScroll(true)", 5); };
	document.getElementById("flechedroite").onmouseover = function(){ scrollDirection = setInterval("flowScroll(false)", 5); };
	document.getElementById("flechegauche").onmouseout = function(){ clearInterval(scrollDirection); };
	document.getElementById("flechedroite").onmouseout = function(){ clearInterval(scrollDirection); };
	var items = flow.getElementsByTagName("a");
	flow.style.width = items.length*10 - 800 + "px";
}

/* init
********************/
window.onload = function(){
	initFlowScroll();
};