var slt //slider timer
var minMargin= 0
var slider = 0
var sWidth = 0
function Left(str, n){
	if (n <= 0)
	    return "";
	else if (n > String(str).length)
	    return str;
	else
	    return String(str).substring(0,n);
}
function Right(str, n){
    if (n <= 0)
       return "";
    else if (n > String(str).length)
       return str;
    else {
       var iLen = String(str).length;
       return String(str).substring(iLen, iLen - n);
    }

}
function sliderInitialize(num) {
slider = document.getElementById("iconTray")
sWidth = 88 * num
minMargin =  -88 * (num - 8)+114
slider.style.width = sWidth + "px"
slider.style.marginLeft = "0px"
	}

function slideLeft() {
	margin = slider.style.marginLeft
	currMargin = Left(margin,margin.indexOf('p'))
	if(currMargin>minMargin)
		slider.style.marginLeft = (currMargin - 5) + "px" 
}

function slideRight() {
margin = slider.style.marginLeft
	currMargin = Left(margin,margin.indexOf('p'))
	if(parseInt(currMargin)<0)
		slider.style.marginLeft = (parseInt(currMargin) + 5) + "px" 
}