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 + ")"; 
}

currIMG = 1;
currX = 0;
scrollsize = 650;


function nextI() {
	obj = document.getElementById("tblContent");
	if (currIMG < maxIMG) {
		currX = currX - scrollsize;
		currIMG = currIMG + 1;
	} else {
		currX = 0;
		currIMG = 1;
	}
	
	obj.style.marginLeft = currX +'px';
	
}

function prevI() {
	obj = document.getElementById("tblContent");
	if (currIMG > 1) {
		currX = currX + scrollsize;
		currIMG = currIMG - 1;
	} else {
		currX = (maxIMG-1) * scrollsize * -1;
		currIMG = maxIMG;
	}
	
	obj.style.marginLeft = currX +'px';
	
}