function shiftOpacity(id, millisec, limit) { 
    //if an element is invisible, make it visible, else make it ivisible 
    if(document.getElementById(id).style.opacity == limit) { 
        opacity(id, 0, 100, millisec); 
    } else { 
        opacity(id, 100, limit, 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 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) 
}


var hex=0; // Initial color value.

function fadeText(){ 
	if(hex<255) { //If color is not black yet
		hex+=11; // increase color darkness
		document.getElementById("mytext").style.color="rgb("+hex+","+hex+","+hex+")";
		setTimeout("fadeText()",50); 
	}
	else {
		hex=0; //reset hex value
	}
} //fadeText