var endPosX;
var objCreated=false;

if (document.all){
	var IE = true;
}else if (document.layers){
	var NS = true;
}else if (document.documentElement){
	var W3C = true;
}
function makeObj(obj){
	this.elem = W3C?document.getElementById(obj):IE?document.all[obj]:NS?eval('document.'+obj):0;
	this.css = W3C?document.getElementById(obj).style:IE?document.all[obj].style:NS?eval('document.'+obj):0;
	return this;
}
//#############################################################
function moveSlider(){
	sliderX = parseInt(obj_slider1.css.left);
	distX = (sliderX - (endPosX))*.2;
	newX = sliderX - distX;
	if (Math.abs(distX) > 0){
		obj_slider1.css.left = newX;
		obj_slider2.css.left = newX;
		setTimeout("moveSlider()", 20);
	}else{
		obj_slider1.css.left = endPosX;
		obj_slider2.css.left = endPosX;
	} 
	
}
//#############################################################
function setBars(){
	obj_slider1 = new makeObj('navSlider1');
	obj_slider2 = new makeObj('navSlider2');
	obj_slider1.css.left = 500;
	obj_slider2.css.left = 500;
	objCreated = true;
}
//#############################################################
function swapImg(img,state){
	if(document.images && img != "" && objCreated){
	// get final left position for slider	
		switch (img){
			case "btnAbout" : 
				endPosX = 20;
				break;
			case "btnResults" : 
				endPosX = 100;
				break;
			case "btnGuarantee" : 
				endPosX = 183;
				break;
			case "btnProducts" : 
				endPosX = 255;
				break;
			case "btnFAQ" : 
				endPosX = 305;
				break;
			case "btnContact" : 
				endPosX = 360;
				break;
		}
		if(state == "over"){
			document[img].src = "images/" + img + "_1.gif";
			moveSlider();
		}else{
			document[img].src = "images/" + img + "_0.gif";
			endPosX = 500
			setTimeout("moveSlider()", 100);
		}
	}
}