﻿

var n=0; 



function MarqueeArr(len) {
	this.length=len
}



function playFadeImg()
{
	if (n == MarqueeArray.length) 
	{
		n = 0
	}

    blendimage('blenddiv','blendimage', 'images/Marquee/' + MarqueeArray[n], 500)
 
    setTimeout("playFadeImg()", 4000);
    
    n++;  
}



function shiftOpacity(id, millisec) { 
    //if an element is invisible, make it visible, else make it invisible 
    if(document.getElementById(id).style.opacity == 0) { 
        opacity(id, 0, 100, millisec); 
    } else { 
        opacity(id, 100, 0, millisec); 
    } 
} 



function opacity(id, opacStart, opacEnd, millisec) { 
    //speed for each frame 
    var speed = 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 * speed)); 
            timer++; 
        } 
    } else if(opacStart < opacEnd) { 
        for(i = opacStart; i <= opacEnd; i++) 
            { 
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed)); 
            timer++; 
        } 
    } 
} 

//change the opacity for different browsers 
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 blendimage(divid, imageid, imagefile, millisec) { 
    //set the current image as background 
    document.getElementById(divid).style.backgroundImage = "url(" + document.getElementById(imageid).src + ")";
     
    //make image transparent 
    changeOpac(0, imageid); 
       
    setTimeout("blendimage2('" + imageid + "', '" + imagefile + "', " + millisec + ");", 50);
 }
 
 
 
 function blendimage2(imageid, imagefile, millisec) {
 
     var timer = 0; 
     var speed = Math.round(millisec / 100); 
    
    //make new image 
    document.getElementById(imageid).src = imagefile; 
    

    //fade in image 
    for(i = 0; i < 100; i++) { 
        setTimeout("changeOpac(" + i + ",'" + imageid + "')",(timer * speed)); 
        timer++; 
    } 
}
