function opacity(id, opacStart, opacEnd, millisec) {
	    var speed = Math.round(millisec / 100);
	    var timer = 0;
	
	    if(opacStart > opacEnd) {
	        for(i = opacStart; i >= opacEnd; i--) {
	            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
				i--;
	            timer++;
	        }
	    } else if(opacStart < opacEnd) {
	        for(i = opacStart; i <= opacEnd; i++)
	            {
	            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
				i++;
	            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 fade() {
		var fimages = new Array();
		fimages[0] = 'header_4.jpg';
		fimages[1] = 'header_5.jpg';
		fimages[2] = 'header_7.jpg';
		fimages[3] = 'header_2.jpg';
		fimages[4] = 'header_9.jpg';
		fimages[5] = 'header_3.jpg';
		fimages[6] = 'header_6.jpg';
		fimages[7] = 'header_8.jpg';
		var src = '';
		var maxb = 7;
		setTimeout('fade();',20000);
		changeOpac(1,'headerimg');
		src = '/blog/header/'+fimages[(Math.round(Math.random()*maxb))]; //+new Date().getTime();
		document.getElementById('headerimg').style.background = 'url('+src+') no-repeat';
		setTimeout('opacity(\'headerimg\',1,99,2000);',5000);
		src = '/blog/header/'+fimages[(Math.round(Math.random()*maxb))]; //+new Date().getTime();
		setTimeout('document.getElementById(\'header\').style.background = \'url('+src+') no-repeat\';',8000);
		setTimeout('opacity(\'headerimg\',99,1,2000);',10000);
	}