<!--

// http://brainerror.net/scripts/javascript/blendtrans/
// ------------------------------------------------------------------


function opacity(id, opacStart, opacEnd, millisec, runOnComplete) {
	//speed for each frame
	var speed = Math.round(millisec / 100);
	var timer = 0;
//alert(id+","+opacStart+","+opacEnd);
	//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 * speed));
			timer++;
		}
	} else if(opacStart < opacEnd) {
		for(i = opacStart; i <= opacEnd; i++)
			{
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	}
	if(runOnComplete!=""){
	    setTimeout(runOnComplete,(timer * speed));
	}
}

//change the opacity for different browsers
function changeOpac(opacity, id) {
    segId="seg_"+id;
    var object = document.getElementById(segId).style;
    if (!IsIE8Browser()){
	object.opacity = (opacity / 100);
	object.MozOpacity = (opacity / 100);
	object.KhtmlOpacity = (opacity / 100);
        object.filter = "alpha(opacity=" + opacity + ")";
    }else{
        segObj = document.getElementById(segId);
        segObj.filters.item("DXImageTransform.Microsoft.Alpha").Opacity = opacity;
        //segObj.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src=images/home_"+id+".png,sizingMethod='scale')";
    }
        //object.MsFilter = "progid:DXImageTransform.Microsoft.Alpha(opacity=" + opacity + ")"; /* IE 8 */
}

function shiftOpacity(id, millisec) {
	//if an element is invisible, make it visible, else make it ivisible
	if(document.getElementById(id).style.opacity == 0) {
		opacity(id, 0, 100, millisec,"");
	} else {
		opacity(id, 100, 0, millisec,"");
	}
}

function blendimage(divid, imageid, imagefile, millisec) {
	var speed = Math.round(millisec / 100);
	var timer = 0;
	
	//set the current image as background
	document.getElementById(divid).style.backgroundImage = "url(" + document.getElementById(imageid).src + ")";
	
	//make image transparent
	changeOpac(0, imageid);
	
	//make new image
	document.getElementById(imageid).src = imagefile;

	//fade in image
	for(i = 0; i <= 100; i++) {
		setTimeout("changeOpac(" + i + ",'" + imageid + "')",(timer * speed));
		timer++;
	}
}

function currentOpac(id, opacEnd, millisec) {
	//standard opacity is 100
	var currentOpac = 100;
	
	//if the element has an opacity set, get it
	if(document.getElementById(id).style.opacity < 100) {
		currentOpac = document.getElementById(id).style.opacity * 100;
	}

	//call for the function that changes the opacity
	opacity(id, currentOpac, opacEnd, millisec,"")
}

//-->