function setCookie(name,value)
{
    var Days = 30; 
    var exp  = new Date();    
    exp.setTime(exp.getTime() + Days*24*60*60*1000);
    document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();
}
function getCookie(name)        
{
    var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
     if(arr != null) return unescape(arr[2]); return '';

}
function delCookie(name)
{
    var exp = new Date();
    exp.setTime(exp.getTime() - 1);
    var cval=getCookie(name);
    if(cval!=null) document.cookie= name + "="+cval+";expires="+exp.toGMTString();
}
var layerWidth=942;
var iFrame=4;
var iFrequency=50;
var timer;
var leftArrow_dis='catalog/view/theme/default/images/BLGray.png';
var leftArrow_en='catalog/view/theme/default/images/dpy__r3_c4.png';
var rightArrow_dis='catalog/view/theme/default/images/BRGray.png';
var rightArrow_en='catalog/view/theme/default/images/dpy__r3_c49.png';
var upArrow_dis='catalog/view/theme/default/images/updis.gif';
var upArrow_en='catalog/view/theme/default/images/upen.gif';
var downArrow_dis='catalog/view/theme/default/images/downdis.gif';
var downArrow_en='catalog/view/theme/default/images/downen.gif';
function moveLeft(master_div_id, inner_div_id, img_left_div, img_right_div)
{
	var par_width=parseInt($('#'+master_div_id).css('width').replace('px',''));
	var con_width=parseInt($('#'+inner_div_id).css('width').replace('px',''));
	var con_pos=parseInt($('#'+inner_div_id).css('left').replace('px', ''));
	if(con_width+con_pos<=par_width) {
		$('#'+img_right_div).attr('src', rightArrow_dis);
		stopScroll();
	} else {
		$('#'+img_left_div).attr('src', leftArrow_en);
		$('#'+inner_div_id).css('left', (con_pos-iFrame)+'px');
		$('#'+img_right_div).attr('src', rightArrow_en);
	}
	
}
function moveUp(master_div_id, inner_div_id, img_up_div, img_down_div)
{
	var par_height=parseInt($('#'+master_div_id).css('height').replace('px',''));
	var con_height=parseInt($('#'+inner_div_id).css('height').replace('px',''));
	var con_pos=parseInt($('#'+inner_div_id).css('top').replace('px', ''));
	if(con_height+con_pos<=par_height) {
		$('#'+img_down_div).attr('src', downArrow_dis);
		stopScroll();
	} else {
		$('#'+img_down_div).attr('src', downArrow_en);
		$('#'+inner_div_id).css('top', (con_pos-iFrame)+'px');
		$('#'+img_up_div).attr('src', upArrow_en);
	}
	
}
function moveDown(master_div_id, inner_div_id, img_up_div, img_down_div)
{
	var con_pos=parseInt($('#'+inner_div_id).css('top').replace('px', ''));
	if(con_pos==0) {
		$('#'+img_up_div).attr('src', upArrow_dis);
		stopScroll();
	} else {
		$('#'+inner_div_id).css('top', (con_pos+iFrame)+'px');
		$('#'+img_up_div).attr('src', upArrow_en);
		$('#'+img_down_div).attr('src', downArrow_en);
	}
	
}
function moveRight(master_div_id, inner_div_id, img_left_div, img_right_div)
{
	var con_pos=parseInt($('#'+inner_div_id).css('left').replace('px', ''));
	if(con_pos==0) {
		$('#'+img_left_div).attr('src', leftArrow_dis);
		stopScroll();
	} else {
		$('#'+inner_div_id).css('left', (con_pos+iFrame)+'px');
		$('#'+img_right_div).attr('src', rightArrow_en);
		$('#'+img_left_div).attr('src', leftArrow_en);
	}
	
}

function startScrollLeft(master_div_id, inner_div_id, img_left_div, img_right_div)
{
	timer=setInterval("moveLeft('"+master_div_id+"','"+inner_div_id+"', '"+img_left_div+"', '"+img_right_div+"')", iFrequency);
}

function startScrollUp(master_div_id, inner_div_id, img_up_div, img_down_div)
{
	timer=setInterval("moveUp('"+master_div_id+"','"+inner_div_id+"', '"+img_up_div+"', '"+img_down_div+"')", iFrequency);
}
function startScrollDown(master_div_id, inner_div_id, img_up_div, img_down_div)
{
	
	timer=setInterval("moveDown('"+master_div_id+"','"+inner_div_id+"', '"+img_up_div+"', '"+img_down_div+"')", iFrequency);
}
function startScrollRight(master_div_id, inner_div_id, img_left_div, img_right_div)
{
	
	timer=setInterval("moveRight('"+master_div_id+"','"+inner_div_id+"', '"+img_left_div+"', '"+img_right_div+"')", iFrequency);
}

function stopScroll()
{
	clearInterval(timer);
}