function opacity(id, opacStart, opacEnd, millisec) {
//speed for each frame
var fspeed = Math.round(millisec / 100);
var timer = 0;
//determine the direction for the blending, if start and end are the same nothing happens
if(opacStart > opacEnd) {
    for(i = opacStart; i >= opacEnd; i--) {
        setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * fspeed));
        timer++;
        }
    } 
    else if(opacStart < opacEnd) {
        for(i = opacStart; i <= opacEnd; i++)
        {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * fspeed));
            timer++;
        }
    }
}

function changeOpac(opacity, id) {
    var object = document.getElementById(id).style;
    object.opacity = (opacity / 100);
    object.MozOpacity = (opacity / 100);
    object.KhtmlOpacity = (opacity / 100);
    object.filter = "alpha(opacity=" + opacity + ")";
} 



function thumb1(){
	document.getElementById("splashimage").style.backgroundImage = "url('uploads/images/splash/splash1.jpg')";
	document.getElementById("splashlink1").className="active";
	document.getElementById("splashlink2").className="";
	document.getElementById("splashlink3").className="";
	document.getElementById("splashlink4").className="";
	
	document.getElementById("thumb1").style.opacity="1";
	document.getElementById("thumb2").style.opacity=".4";
	document.getElementById("thumb3").style.opacity=".4";
	document.getElementById("thumb4").style.opacity=".4";
	changeOpac('0', 'splashimage');
	opacity('splashimage', '0', '100', 1000);


}
function thumb2(){
	document.getElementById("splashimage").style.backgroundImage = "url('uploads/images/splash/splash2.jpg')";
	document.getElementById("splashlink1").className="";
	document.getElementById("splashlink2").className="active";
	document.getElementById("splashlink3").className="";
	document.getElementById("splashlink4").className="";
	
	document.getElementById("thumb1").style.opacity=".4";
	document.getElementById("thumb2").style.opacity="1";
	document.getElementById("thumb3").style.opacity=".4";
	document.getElementById("thumb4").style.opacity=".4";
	
	changeOpac('0', 'splashimage');
	opacity('splashimage', '0', '100', 1000);
}
function thumb3(){
	document.getElementById("splashimage").style.backgroundImage = "url('uploads/images/splash/splash3.jpg')";
	document.getElementById("splashlink1").className="";
	document.getElementById("splashlink2").className="";
	document.getElementById("splashlink3").className="active";
	document.getElementById("splashlink4").className="";
	
	document.getElementById("thumb1").style.opacity=".4";
	document.getElementById("thumb2").style.opacity=".4";
	document.getElementById("thumb3").style.opacity="1";
	document.getElementById("thumb4").style.opacity=".4";
	
	changeOpac('0', 'splashimage');
	opacity('splashimage', '0', '100', 1000);
}
function thumb4(){
	document.getElementById("splashimage").style.backgroundImage = "url('uploads/images/splash/splash4.jpg')";
	document.getElementById("splashlink1").className="";
	document.getElementById("splashlink2").className="";
	document.getElementById("splashlink3").className="";
	document.getElementById("splashlink4").className="active";
	
	document.getElementById("thumb1").style.opacity=".4";
	document.getElementById("thumb2").style.opacity=".4";
	document.getElementById("thumb3").style.opacity=".4";
	document.getElementById("thumb4").style.opacity="1";

	changeOpac('0', 'splashimage');
	opacity('splashimage', '0', '100', 1000);
	
}




function rotateThumbs() {
	thumb1();
	setTimeout('thumb2()', 5000);
	setTimeout('thumb3()', 10000);
	setTimeout('thumb4()', 15000);
	setTimeout('rotateThumbs()', 20000);
	
}

function mainMenuActiveLink(element) {
	document.getElementById(element).style.backgroundPosition ="right top";
}
function mainMenuInactiveLink(element) {
	document.getElementById(element).style.backgroundPosition ="";
}