// javascript document
(function(){
	$("#nav > li").hover(function(){
		$(this).children("a").addclass("hover");
		$(this).children("ul").show();
	}, function(){
		$(this).children("a").removeclass("hover");
		$(this).children("ul").hide();
	});
	$.fn.rollpic = function(o){
		var o = $.extend({
			pause:5000,
			nspd:1000,
			uspd:300,
			vnum:5,
			snum:1,
			start:0,
			ish:true,
			auto:true
		}, o||{});
		
		return this.each(function(){
			var $cont = $(".sp-cont", this), 
			$prev = $(".next", this), $next = $(".prev", this),
			$a = $cont.children("a"), len = $a.length, v=o.vnum;
			if(len<v){return false;}
			$cont.prepend($a.slice(len-v-1+1).clone(true)).append($a.slice(0,v).clone(true));
			o.start += v;
			var curr = o.start;
			
			var interval = null, a_dir = o.ish ? "marginleft":"margintop", c_dir = "left",
			asize = o.ish ? parseint(getstyle($a[0],"width")) : parseint(getstyle($a[0],"height")), contds = o.ish ? "width" : "height",
			itemlength = $cont.children("a").size();
			$cont.css(contds, itemlength*asize).css(a_dir, -(curr*asize));
			
			var isover = true;
			
			if(o.auto){
				$cont.hover(function(){
					clearinterval(interval);
				}, function(){
					if(c_dir == "left"){
						interval = setinterval(function(){ roll(curr+o.snum)}, o.pause);
					}else if(c_dir == "right"){
						interval = setinterval(function(){ roll(curr-o.snum)}, o.pause);
					}
				});
			}
			if($prev){
				$prev.click(function(){
					if(o.auto){clearinterval(interval)};
					if(isover==true){roll(curr-o.snum, o.uspd);c_dir = "right";};
					if(o.auto){interval = setinterval(function(){ roll(curr-o.snum)}, o.pause)};
				});
			}
			if($next){
				$next.click(function(){
					if(o.auto){clearinterval(interval)};
					if(isover==true){roll(curr+o.snum, o.uspd); c_dir = "left";};
					if(o.auto){interval = setinterval(function(){ roll(curr+o.snum)}, o.pause)};
				});
			}
			if(o.auto){ interval = setinterval(function(){ roll(curr+o.snum)}, o.pause);}
			function roll(to, spd){
				if(isover){
					var spd = spd || o.nspd
					isover = false;
					if(to<=o.start-v-1){
							$cont.css(a_dir, -((v+(len-v)+curr)*asize)+"px");
							curr = (v+(len-v)+curr)-o.snum;
					}else if(to>=itemlength-v+1) {
							$cont.css(a_dir, -( (v-(itemlength-v-curr)) * asize ) + "px" );
							curr = (v-(itemlength-v-curr))+o.snum;
					}else curr = to;
					
					$cont.animate(
							a_dir == "marginleft" ? {"marginleft": -(curr*asize) } : {"margintop": -(curr*asize) } , spd, function(){isover = true;}
					);
				}
				return false;
			};
			
		});
	}
	//tabs
	$.fn.tabs = function(o){
		var o = $.extend({meth:"hover"}, o||{})
		return this.each(function(){
			var $menu = $(this).children(".tab-menu").children("li"), $cont = $(this).children(".tab-cont").children(".cont");
			$menu.each(function(i){
				if(o.meth == "click"){
					$(this).click(function(){ toggle(i) });				
				}else if(o.meth == "hover"){
					$(this).hover(function(){ toggle(i) });
				}
			});
			function toggle(i){
				$menu.removeclass("hover");
				$menu.eq(i).addclass("hover");
				$cont.removeclass("hover");
				$cont.eq(i).addclass("hover");
			}
		});
	}
	$.fn.iselect = function(){
		return this.each(function(){
			var $sval=$(".isel-val", this), $sopt=$(".isel-opt", this), $opt=$("li", this);
			$sval.click(function(){$sopt.slidedown("fast");});
			$opt.click(function(){
				$sval.html($(this).text());
				$sopt.hide();
			});
			$sopt.hover(function(){$sopt.show();},function(){$sopt.hide();});
			$opt.hover(function(){$(this).addclass("hover");}, function(){$(this).removeclass("hover");});
		});
	}
	/* picshow */
	$.fn.picshow = function(o){
		var o = $.extend({
			 pause:5000,
			 fspd:100,
			 auto:true
		}, o||{});
		return this.each(function(){
			var $cont = $(".ps-cont > a", this), $title = $(".ps-title > h3", this), $nav = $(".ps-nav > a", this),
			len = $cont.length;
			var interval = null, index = 0, isover = true;
			if(o.auto){$cont.hover(function(){clearinterval(interval);}, auto);}
			if(o.auto){
				$nav.each(function(i){
					$(this).hover(function(){
						clearinterval(interval);
						roll(i);
					}, auto);
				});
			}else{
				$nav.each(function(i){
					$(this).hover(function(){roll(i);});
				});
			}
			
			function auto(){
				clearinterval(interval);
				interval = setinterval(function(){ roll(index==(len-1) ? 0 : index+1);}, o.pause);
			}
			function roll(i){
				if(isover){
					isover = false;
					$cont.hide();
					$cont.eq(i).fadein(o.fspd, function(){ isover = true; });
					$nav.removeclass("hover");
					$nav.eq(i).addclass("hover");
					$title.hide();
					$title.eq(i).show()
					index = i;
				}
			}
			//init
			$cont.eq(index).show();
			$nav.eq(index).addclass("hover");
			if(o.auto){auto();}
		});
	}
})(jquery);
function sidemenu(id){
	var $obj = $(id), sidemenuindex = -1;
	$obj.children("li").each(function(i){
		$(this).removeclass("hover");
		if($(this).children("a").attr("href") == window.location.pathname){
			sidemenuindex = i;
			$(this).addclass("hover");
		}
		$(this).hover(function(){$(this).addclass("over");},function(){$(this).removeclass("over");})
	});
	$obj.find("li:has(li) li").each(function(i){
		if($(this).children("a").attr("href") == window.location.pathname){
			sidemenuindex = i;
			$(this).addclass("hover");
			$(this).parent("ul").show();
		}
	});
	
	if(sidemenuindex < 0){
		$obj.children("li:first:has(li)").children("ul").hide();
	}
	$obj.find("li:has(li) > a").toggle(function(){
		$(this).parent().children("ul").slidedown();
		$(this).parent().addclass("hover");
	},function(){
		$(this).parent().children("ul").slideup();
		$(this).parent().removeclass("hover");
	})
}
function getstyle(obj,pro){
	return obj.currentstyle ? obj.currentstyle[pro] : document.defaultview.getcomputedstyle(obj,null)[pro]; //ie, ff
}
function setprintbtn(btn){
	$(btn).click(
		function(){
			window.print();
			return false;
		}
	);
}
function zoomfont(zoomarea){
	$(".zoomin").click(
		function(){
			var fontsize = number($(zoomarea).css("font-size").slice(0,-2));
			if(fontsize > 12){
				fontsize -= 2;
				$(zoomarea).css("font-size", fontsize + "px");
			}
			return false;
		}
	);
	$(".zoomout").click(
		function(){
			var fontsize = number($(zoomarea).css("font-size").slice(0,-2));
			if(fontsize <18){
				fontsize += 2;
				$(zoomarea).css("font-size", fontsize + "px");
			}
			return false;
		}
	);
}