$(document).ready(function()
{
//nav menu current styles
$('#fixed_nav>ul>li.sel').prepend('<span class="sel_left"></span><span class="sel_right"></span>'); //prepend to make sure they render behind the link

//match sidebar height to content, or vice versa
h = Math.max($('#navigation').height(),$('#shop_display').height() + $('#page_display').height()); //add _display-s because both are present on front page
$('#navigation').height(h); //only the sidebar ever needs to get bigger 

// search field default text and clearing
$('#search').val('Type keyword here').focus(function()
  { if($(this).val()=='Type keyword here'){$(this).val('');} }).blur(function()
  { if($(this).val()==''){$(this).val('Type keyword here');} })

//IE rounded corners
if(!$.support.htmlSerialize) // IE feature detection
{
struct = '<span class="ie-tl"></span><span class="ie-tr"></span><span class="ie-br"></span><span class="ie-bl"></span>';
$('ul.thumb_search').append(struct);
$('h1.feat_head').append(struct);
$('#prod_images').append(struct);

//compensate for irregular first-child/last-child support
$('li:first-child').addClass('ie-first');$('li:last-child').addClass('ie-last');
} //end IE detection
}); //end ready

/** nav menu hover function */
var menu=function(){
	var t=15,z=50,s=6,a;
	function dd(n){this.n=n; this.h=[]; this.c=[]}
	dd.prototype.init=function(p,c){
		a=c; var w=document.getElementById(p), s=w.getElementsByTagName('ul'), l=s.length, i=0;
		for(i;i<l;i++){
			var h=s[i].parentNode; this.h[i]=h; this.c[i]=s[i];
			h.onmouseover=new Function(this.n+'.st('+i+',true)');
			h.onmouseout=new Function(this.n+'.st('+i+')');
		}
	}
	dd.prototype.st=function(x,f){
		var c=this.c[x], h=this.h[x], p=h.getElementsByTagName('a')[0];
		clearInterval(c.t); c.style.overflow='hidden';
		if(f){
			p.className+=' '+a;
			if(!c.mh){c.style.display='block'; c.style.height=''; c.mh=c.offsetHeight; c.style.height=0}
			if(c.mh==c.offsetHeight){c.style.overflow='visible'}
			else{c.style.zIndex=z; z++; c.t=setInterval(function(){sl(c,1)},t)}
		}else{p.className=p.className.replace(a,''); c.t=setInterval(function(){sl(c,-1)},t)}
	}
	function sl(c,f){
		var h=c.offsetHeight;
		if((h<=0&&f!=1)||(h>=c.mh&&f==1)){
			if(f==1){c.style.filter=''; c.style.opacity=1; c.style.overflow='visible'}
			clearInterval(c.t); return
		}
		var d=(f==1)?Math.ceil((c.mh-h)/s):Math.ceil(h/s), o=h/c.mh;
		c.style.opacity=o; c.style.filter='alpha(opacity='+(o*100)+')';
		c.style.height=h+(d*f)+'px'
	}
	return{dd:dd}
}();