//---------------------------------------------------------------------------------------------------------------------------------------------------------
//
//---------------------------------------------------------------------------------------------------------------------------------------------------------
function MainMenu() {
	var oMainMenu = document.getElementById("main_menu");
	var oSubmenus = oMainMenu.getElementsByTagName("LI");
	
	for(var i = 0; i < oSubmenus.length; i++) {
		var oSubmenu = oSubmenus[i];
		var oSubsub = oSubmenu.getElementsByTagName("UL");
		
		if(oSubsub.length > 0) {
			oSubmenu.onmouseover = function() {
				this.lastChild.style.display = "block";
			}
			
			oSubmenu.onmouseout = function() {
				this.lastChild.style.display = "none";
			}
		}
	}
}

//---------------------------------------------------------------------------------------------------------------------------------------------------------
//
//---------------------------------------------------------------------------------------------------------------------------------------------------------
function SetupScrolling() {
	var Area = document.getElementById("scroll_content");
	
	if(Area && Area.scrollHeight > Area.clientHeight) {
		document.getElementById("scroll_up").style.display = "inline";
		document.getElementById("scroll_down").style.display = "inline";
	}
}

var Scroll;
//---------------------------------------------------------------------------------------------------------------------------------------------------------
//
//---------------------------------------------------------------------------------------------------------------------------------------------------------
function SScroll(vDirection) {
	if(vDirection == "down") {
		Scroll = setInterval("ScrollDown()", 25);
	} else {
		Scroll = setInterval("ScrollUp()", 25);
	}
}

//---------------------------------------------------------------------------------------------------------------------------------------------------------
//
//---------------------------------------------------------------------------------------------------------------------------------------------------------
function EScroll() {
	clearInterval(Scroll);
}

//---------------------------------------------------------------------------------------------------------------------------------------------------------
//
//---------------------------------------------------------------------------------------------------------------------------------------------------------
function ScrollDown() {
	document.getElementById("scroll_content").scrollTop = parseInt(document.getElementById("scroll_content").scrollTop) + 4;
}

//---------------------------------------------------------------------------------------------------------------------------------------------------------
//
//---------------------------------------------------------------------------------------------------------------------------------------------------------
function ScrollUp() {
	document.getElementById("scroll_content").scrollTop = parseInt(document.getElementById("scroll_content").scrollTop) - 4;
}