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_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_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];}
}
var helpArray =[
 "Please use the form below to contact us by email.",
 "Please type in a contact name.",
 "Please type in a contact telephone number.",
 "Please type in a contact Email address.",
 "Please type in your enquiry to Economy Double Glazing Company." ];
 function helpText( messageNum )
 {
 document.frm_contact.helpbox.value=helpArray[messageNum ];
 }
 function MM_validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n'; }
  } if (errors) alert('The following error(s) occurred:\n'+errors);
  document.MM_returnValue = (errors == '');
}

var AdditionalSiteHeight = 40;

function ZoomImage(img){
document.getElementById('PicZoomLayon').style.height = document.body.clientHeight + AdditionalSiteHeight + 'px';
document.getElementById('PicZoomLayon').style.width = document.body.clientWidth + AdditionalSiteHeight + 'px';
document.getElementById('PicZoomLayon').style.filter='Alpha(Opacity=0)';
document.getElementById('PicZoomLayon').style.display='';
document.getElementById('ZoomPic').src = img;
if (document.all){
var fromthetop = (document.documentElement && document.documentElement.scrollTop) ? document.documentElement.scrollTop : document.body.scrollTop;
document.getElementById('PicZoom').style.top = fromthetop + 'px';
} else {
document.getElementById('PicZoom').style.top = window.pageYOffset + 'px';}
document.getElementById('PicZoom').style.display='';

var timeamount = 0;
var mspercent = 5;
var timeinc = 1;
var opacinc = 1;
var maxopacity = 80;
for (var opacity = 0; opacity <= maxopacity; opacity=opacity+opacinc){
timeamount=timeamount+timeinc;
setTimeout("document.getElementById('PicZoomLayon').style.filter='Alpha(Opacity='+"+opacity+"+')';",timeamount*mspercent)
}}

function HideImage() {
document.getElementById('PicZoom').style.display='none';
var timeamount = 0;
var mspercent = 5;
var timeinc = 1;
var opacinc = 1;
var maxopacity = 80;
for (var opacity = maxopacity; opacity >= 0; opacity=opacity-opacinc){
timeamount=timeamount+timeinc;
setTimeout("document.getElementById('PicZoomLayon').style.filter='Alpha(Opacity='+"+opacity+"+')';",timeamount*mspercent)
}
setTimeout("document.getElementById('PicZoomLayon').style.display='none';",timeamount*mspercent)
setTimeout("document.getElementById('ZoomPic').src = 'loading.gif';",timeamount*mspercent)
}