// JavaScript Document
function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function P7_Snap() { //v2.65 by PVII
 var x,y,ox,bx,oy,p,tx,a,b,k,d,da,e,el,tw,q0,xx,yy,w1,pa='px',args=P7_Snap.arguments;a=parseInt(a);
 if(document.layers||window.opera){pa='';}for(k=0;k<(args.length);k+=4){
 if((g=MM_findObj(args[k]))!=null){if((el=MM_findObj(args[k+1]))!=null){
 a=parseInt(args[k+2]);b=parseInt(args[k+3]);x=0;y=0;ox=0;oy=0;p="";tx=1;
 da="document.all['"+args[k]+"']";if(document.getElementById){
 d="document.getElementsByName('"+args[k]+"')[0]";if(!eval(d)){
 d="document.getElementById('"+args[k]+"')";if(!eval(d)){d=da;}}
 }else if(document.all){d=da;}if(document.all||document.getElementById){while(tx==1){
 p+=".offsetParent";if(eval(d+p)){x+=parseInt(eval(d+p+".offsetLeft"));y+=parseInt(eval(d+p+".offsetTop"));
 }else{tx=0;}}ox=parseInt(g.offsetLeft);oy=parseInt(g.offsetTop);tw=x+ox+y+oy;
 if(tw==0||(navigator.appVersion.indexOf("MSIE 4")>-1&&navigator.appVersion.indexOf("Mac")>-1)){
  ox=0;oy=0;if(g.style.left){x=parseInt(g.style.left);y=parseInt(g.style.top);}else{
  w1=parseInt(el.style.width);bx=(a<0)?-5-w1:-10;a=(Math.abs(a)<1000)?0:a;b=(Math.abs(b)<1000)?0:b;
  x=document.body.scrollLeft+event.clientX+bx;y=document.body.scrollTop+event.clientY;}}
 }else if(document.layers){x=g.x;y=g.y;q0=document.layers,dd="";for(var s=0;s<q0.length;s++){
  dd='document.'+q0[s].name;if(eval(dd+'.document.'+args[k])){x+=eval(dd+'.left');y+=eval(dd+'.top');
  break;}}}e=(document.layers)?el:el.style;xx=parseInt(x+ox+a),yy=parseInt(y+oy+b);
 if(navigator.appVersion.indexOf("MSIE 5")>-1 && navigator.appVersion.indexOf("Mac")>-1){
  xx+=parseInt(document.body.leftMargin);yy+=parseInt(document.body.topMargin);}
 e.left=xx+pa;e.top=yy+pa;}}}
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function selectThis(img) {
	document.images['target'].src=img;
}

function checkCategory() {
	var anum = /(^\d+$)|(^\d+\.\d+$)/
	var t = document.frmCategories;
	var count = t.CatCount.value;
	for(var x=1; x<count; x++) {
		var s = "sale_"+x;
		var sale = t[s].checked;
		if(sale) {
			var p = "perc_"+x;
			var perc = t[p].value;
			if (anum.test(perc)) {
				var sd = "startDate_"+x;
				var sdate = t[sd].value;
				var myDate1 = new Date(sdate);
				
				var ed = "endDate_"+x;
				var edate = t[ed].value;
				var myDate2 = new Date(edate);
				
				if(myDate1=="NaN"||myDate2=="NaN") {
					alert("Please enter a valid start date and end date of sale.")
					return false;
				} else return true;
			} else {
				alert("Please enter a valid percent.")
				var temp = t[p].focus();
				return false;
			}
		}
	}
}

function checkSearch() {

		var check = 0;
		
		var temp = document.searchform.Keyword.value;
		if ((temp == '') || (temp.charAt(0) == ' ')){
			check++;
		}
		
		var temp = document.searchform.number.value;
		if ((temp == '') || (temp.charAt(0) == ' ')){
			check++;
		} else {
			var anum=/(^\d+$)|(^\d+\.\d+$)/
			if (anum.test(temp))
				return true;
			else{
				alert("Please input a valid number!")
				var temp = document.searchform.number.focus();
				return false;
			}
			
		}
		
		var temp = document.searchform.publisher.value;
		if ((temp == '') || (temp.charAt(0) == ' ')){
			check++;
		}
		
		var temp = document.searchform.category.value;
		if ((temp == '') || (temp.charAt(0) == ' ')){
			check++;
		}
		
		var temp = document.searchform.genre.value;
		if ((temp == '') || (temp.charAt(0) == ' ')){
			check++;
		}
		
		var temp = document.searchform.age.value;
		if ((temp == '') || (temp.charAt(0) == ' ')){
			check++;
		}
		
		if(check == 6) {
			alert("Please enter keyword or select a type to search.");
			return false;
		}
		
}

function checkField() {
		var temp = document.theForm.Keyword.value;
		if ((temp == '') || (temp.charAt(0) == ' ')){
			alert("Please enter title.");
			document.theForm.Keyword.focus();
			return false;
		}
		/*
		var temp = document.theForm.Types.value;
		if ((temp == '') || (temp.charAt(0) == ' ')){
			alert("Please select type.");
			document.theForm.Types.focus();
			return false;
		}
		
		var temp = document.theForm.Publisher.value;
		if ((temp == '') || (temp.charAt(0) == ' ')){
			alert("Please select publisher.");
			document.theForm.Publisher.focus();
			return false;
		}
		
		var temp = document.theForm.Category.value;
		if ((temp == '') || (temp.charAt(0) == ' ')){
			alert("Please select category.");
			document.theForm.Category.focus();
			return false;
		}
		
		var temp = document.theForm.Genre.value;
		if ((temp == '') || (temp.charAt(0) == ' ')){
			alert("Please select genre.");
			document.theForm.Genre.focus();
			return false;
		}
		
		var temp = document.theForm.Age.value;
		if ((temp == '') || (temp.charAt(0) == ' ')){
			alert("Please select age.");
			document.theForm.Age.focus();
			return false;
		}
		
		var temp = document.theForm.Number.value;
		if ((temp == '') || (temp.charAt(0) == ' ')){
			alert("Please enter number.");
			document.theForm.Number.focus();
			return false;
		} else {
			if (isNaN(temp)){
				alert("Please enter valid number.");
				document.theForm.Number.focus();
				return false;
			}
		}
		*/
		var temp = document.theForm.Number.value;
		if (isNaN(temp)){
			alert("Please enter valid number.");
			document.theForm.Number.focus();
			return false;
		}
		
		var temp = document.theForm.Grade.value;
		if ((temp == '') || (temp.charAt(0) == ' ')){
			alert("Please select grade.");
			return false;
		}
		
		var temp = document.theForm.Price.value;
		if ((temp == '') || (temp.charAt(0) == ' ')){
			alert("Please enter price.");
			document.theForm.Price.focus();
			return false;
		} else {
			if (isNaN(temp)){
				alert("Please enter valid price.");
				document.theForm.Price.focus();
				return false;
			}
		}
		
}

function checkLogin() {
		var temp = document.theForm.userid.value;
		if ((temp == '') || (temp.charAt(0) == ' ')){
			alert("Please enter userid.");
			document.theForm.userid.focus();
			return false;
		}
		
		var temp = document.theForm.password.value;
		if ((temp == '') || (temp.charAt(0) == ' ')){
			alert("Please enter password.");
			document.theForm.password.focus();
			return false;
		}
}

function checkTitle() {
		var temp = document.theForm.Title.value;
		if ((temp == '') || (temp.charAt(0) == ' ')){
			alert("Please enter title.");
			return false;
		}
}

function checkfast() {
		var temp = document.theForm.Keyword.value;
		if ((temp == '') || (temp.charAt(0) == ' ')){
			return false;
		}
}

function popup(ID) {
	var w = 600;
	var h = 800;
	var name = "openwin"
	flashwin=window.open('popup.asp?ID='+ID,name,'menubar=no,height='+h+',width='+w+',top='+((screen.height-h)/2)+',left='+((screen.width-w)/2)+',screenX='+((screen.width-w)/2)+',screenY='+((screen.height-h)/2)+',scrollbars=yes,resizable=yes,alwaysRaised=yes');
	flashwin.focus();
}

function openWin(url, winName, props) {
	window.open(url, winName, props+",scrollbars=yes,resizable=yes,alwaysRaised=yes");
}

function checknewsletter() {
		var temp = document.formnewsletter.name.value;
		if ((temp == '') || (temp.charAt(0) == ' ')){
			alert("Please enter your name.");
			document.formnewsletter.name.focus();
			return false;
		}
		
		var temp = document.formnewsletter.email.value;
		if ((temp == '') || (temp.charAt(0) == ' ')){
			alert("Please enter your email.");
			document.formnewsletter.email.focus();
			return false;
		}
		
		var exclude=/[^@\-\.\w]|^[_@\.\-]|[\._\-]{2}|[@\.]{2}|(@)[^@]*\1/;
		var check=/@[\w\-]+\./;
		var checkend=/\.[a-zA-Z]{2,3}$/;
	
		if(((temp.search(exclude) != -1)||(temp.search(check)) == -1)||(temp.search(checkend) == -1)) {
			alert("Invalid email address!");
			document.formnewsletter.email.focus();
			return false;
		}
}