/*****************************************************
* sM 
* 3/04/2001
*
* a nice little script to create exclusive, slide-out
* menus for ns4, ns6, mozilla, opera, ie4, ie5 on 
* mac and win32. I've got no linux or unix to test on but 
* it should(?) work... 
*
* Revised:
* - 08/19/2005
* --linuxhostingplans.com--
*
*****************************************************/

sM.Registry = [];
sM.aniLen = 0;
sM.hideDelay = 300;
sM.minCPUResolution = 10;

overBGColor = '#41A5AF';

/*constructor
arguments: 
	menu id, 
	scroll direction, 
	pixel left, 
	pxiel top, 
	pixel width, 
	pixel height
*/

MNS = new Array();
MNS[0] = "menu1";
MNS[1] = "menu2";
MNS[2] = "menu3";
MNS[3] = "menu4";
MNS[4] = "menu5";
MNS[5] = "menu6";
MNS[6] = "menu7";

function sM(id, dir, left, top, width, height, wCell, origBG){
	this.ie = document.all ? 1 : 0
	this.ns4 = document.layers ? 1 : 0
	this.dom = document.getElementById ? 1 : 0
	
	if(this.ie || this.ns4 || this.dom){
		this.id = id;
		this.dir = dir;
		this.orientation = dir == "left" || dir == "right" ? "h" : "v";
		this.dirType = dir == "right" || dir == "down" ? "-" : "+";
		this.dim = this.orientation == "h" ? width : height;
		this.hideTimer = false;
		this.aniTimer = false;
		this.open = false;
		this.over = false;
		this.startTime = 0;
		this.gRef = "sM_"+id;
		
		eval(this.gRef+"=this");
		sM.Registry[id] = this;
		sM.Registry[id].wCell = wCell;
		sM.Registry[id].origBG = origBG;
		
		var d = document;
		var strCSS = '<style type="text/css">';
		strCSS += '#' + this.id + 'Container { visibility:hidden; '
		//strCSS += 'left:' + left + 'px; '
		strCSS += 'top:' + top + 'px; '
		strCSS += 'overflow:hidden; z-index:10000; }'
		strCSS += '#' + this.id + 'Container, #' + this.id + 'Content { position:absolute; '
		strCSS += 'width:' + width + 'px; '
		strCSS += 'height:' + height + 'px; '
		strCSS += 'clip:rect(0 ' + width + ' ' + height + ' 0); '
		strCSS += '}'
		strCSS += '</style>'
		d.write(strCSS)
		this.load();
	}
}

sM.prototype.load = function(){
	var d = document
	var lyrId1 = this.id + "Container"
	var lyrId2 = this.id + "Content"
	var obj1 = this.dom ? d.getElementById(lyrId1) : this.ie ? d.all[lyrId1] : d.layers[lyrId1]
	
	if(obj1){
		var obj2 = this.ns4 ? 
		obj1.layers[lyrId2] : this.ie ? d.all[lyrId2] : d.getElementById(lyrId2);
	}
	
	var temp;
	if(!obj1 || !obj2){
		window.setTimeout(this.gRef + ".load()", 100);
	} else {
		this.container = obj1
		this.menu = obj2
		this.style = this.ns4 ? this.menu : this.menu.style
		this.homePos = eval("0" + this.dirType + this.dim)
		this.outPos = 0
		this.accelConst = (this.outPos - this.homePos) / sM.aniLen / sM.aniLen 
		// set event handlers.
		if (this.ns4) this.menu.captureEvents(Event.MOUSEOVER | Event.MOUSEOUT);
		this.menu.onmouseover = new Function("sM.showMenu('" + this.id + "')")
		this.menu.onmouseout = new Function("sM.hideMenu('" + this.id + "')")
		//set initial state
		this.endSlide()
	}
}

sM.showMenu = function(id){
	var reg = sM.Registry
	var obj = sM.Registry[id]
	if(obj.container){
		obj.over = true
		for(menu in reg){
			if(menu == id){
			document.getElementById(reg[menu].wCell).style.background = overBGColor;
			} else {
			document.getElementById(reg[menu].wCell).style.background = reg[menu].origBG;sM.hide(menu);
			}
		}
		if (obj.hideTimer) { reg[id].hideTimer = window.clearTimeout(reg[id].hideTimer) }
		if (!obj.open && !obj.aniTimer) reg[id].startSlide(true)
	}
}

sM.hideMenu = function(id){
	var obj = sM.Registry[id]
	if(obj.container){
		if (obj.hideTimer) window.clearTimeout(obj.hideTimer)
		obj.hideTimer = window.setTimeout("sM.hide('" + id + "')", sM.hideDelay);
	}
}

sM.hide = function(id){
	var reg = sM.Registry
	var obj = sM.Registry[id]
	obj.over = false
	if (obj.hideTimer) window.clearTimeout(obj.hideTimer)
	obj.hideTimer = 0
	if (obj.open && !obj.aniTimer) obj.startSlide(false)
	
	for(menu in reg){
		if(menu == id)
		document.getElementById(reg[menu].wCell).style.background = reg[menu].origBG;
	}
}

function restoreAll(){
	var reg = sM.Registry
	for(menu in reg){
		reg[menu].setVisibility(false);
		document.getElementById(reg[menu].wCell).style.background = reg[menu].origBG;
	}
	//sM.Registry['menu1'].setVisibility(false);
	//document.getElementById('c1').style.background = sM.Registry['menu1'].origBG;
}

sM.prototype.startSlide = function(open) {
	this[open ? "onactivate" : "ondeactivate"]()
	this.open = open
	if (open) this.setVisibility(true)
	this.startTime = (new Date()).getTime() 
	this.aniTimer = window.setInterval(this.gRef + ".slide()", sM.minCPUResolution)
}

sM.prototype.slide = function() {
	var elapsed = (new Date()).getTime() - this.startTime
	if (elapsed > sM.aniLen) this.endSlide()
	else {
		var d = Math.round(Math.pow(sM.aniLen-elapsed, 2) * this.accelConst)
		if (this.open && this.dirType == "-") d = -d
		else if (this.open && this.dirType == "+") d = -d
		else if (!this.open && this.dirType == "-") d = -this.dim + d
		else d = this.dim + d
		this.moveTo(d)
	}
}

sM.prototype.endSlide = function() {
	this.aniTimer = window.clearTimeout(this.aniTimer)
	this.moveTo(this.open ? this.outPos : this.homePos)
	if (!this.open) this.setVisibility(false)
	if ((this.open && !this.over) || (!this.open && this.over)) {
		this.startSlide(this.over)
	}
}

sM.prototype.setVisibility = function(bShow) { 
	var s = this.ns4 ? this.container : this.container.style
	s.visibility = bShow ? "visible" : "hidden"
}

sM.prototype.moveTo = function(p) { 
	this.style[this.orientation == "h" ? "left" : "top"] = this.ns4 ? p : p + "px"
}

sM.prototype.getPos = function(c) {
	return parseInt(this.style[c])
}

sM.prototype.onactivate = function() { }

sM.prototype.ondeactivate = function() { }