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_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 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 openWindow(url) 
 {
     var NewWin =   window.open(url,"new","scrollbars=yes, resizable=yes, width=250, height=420");
 }
 
function openWindowParam(url,width,height) 
 {
     var NewWin =   window.open(url,"new","width="+width+", height="+height+",scrollbars=yes,toolbar=no, menubar=no,resizable=yes");
 }

function openWindowNoParam(img,width,height)
{
 var win = window.open("","imgwin","width="+width+",height="+height+", scrollbars=no,toolbar=no, menubar=no,resizable=no");

with (win.document)
 {
   writeln("<html>");
   writeln("<head>");
   writeln("<title>" + img + "</title>");
   writeln("</head>");
   writeln("<body leftmargin='0' topmargin='0' marginwidth='0' marginheight='0'>");
   writeln("<img src=\"" + img + "\">");
   writeln("</body>");
   writeln("</html>");
 }
}

 
 function openWinCenter(url, name, height, width) 
 {
 	var str = "height=" + height + ",innerHeight=" + height;
	str += ",toolbar=yes, menubar=yes, scrollbars=yes, resizable=yes, width=" + width + ",innerWidth=" + width;	
 	if (window.screen) 
	{
    	var ah = screen.availHeight - 30;
	    var aw = screen.availWidth - 10;

    	var xc = (aw - width) / 2;
	    var yc = (ah - height) / 2;

    	str += ",left=" + xc + ",screenX=" + xc;
	    str += ",top=" + yc + ",screenY=" + yc;
  }
     var NewWin =   window.open(url,name,str);
  }
  function CheckRequiredFields(frm,msg)
{
	result = true;
	for (i=0,n=frm.elements.length;i<n;i++)
	{
		if (frm.elements[i].getAttribute('required') == 1)
		{
			if (isNaN(frm.elements[i].value)) {
				if (frm.elements[i].value == 0) {
					alert(msg);
					return false;
				}
			} 
			else {
				if (frm.elements[i].value == '') {
					alert(msg);
					return false;
				}
			}
		}
	}
	return result;
}

function onLoadFunction(){
	openWindowParam("http://www.electrabooks.com/www2/mailist/form.htm",460,385);
	MM_preloadImages('images/home_01_10_over.jpg','images/home_01_12_over.jpg','images/but_01_over.jpg','images/but_02_over.jpg','images/but_03_over.jpg','images/but_04_over.jpg','images/but_05_over.jpg','images/home_01_08_over.jpg','images/conatct_over.jpg');
}
