// JavaScript Document
function tabs(r,x,t) {
	var speed = 3;
   	var timer = 0;
	var tar = document.getElementById(t).style;

	for (i=1; i<= x; i++)
		{
		d = r+i;
		
		document.getElementById(d).style.display= "none";
		
		}
	setTimeout("changeOpac(0,'" + t + "')",1);
	
	tar.display= "block";
	for(j = 0; j <= 100; j++)
            {
            setTimeout("changeOpac(" + j + ",'" + t + "')",(timer * speed));
           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 + ")";
}