// Only script specific to this form goes here.
// General-purpose routines are in a separate file.
  function validateOnSubmit() {
    var elem;
    var errs=0;
    // execute all element validations in reverse order, so focus gets
    // set to the first one in error.
    if (!validatePresent(document.forms.contactus.name,  'inf_name'))        errs += 1;
    if (!validateEmail(document.forms.contactus.email, 'inf_email', true)) errs += 1; 
	if (!validatePresent(document.forms.contactus.postcode,  'inf_postcode'))        errs += 1;
    if (errs>1)  alert('There are fields which need correction before sending');
    if (errs==1) alert('There is a field which needs correction before sending');
	if (errs==0) userPressedSubmit();
    return (errs==0);
  };
  
  function tsHideObject(objNameStr, documentObj){
                // hides a specified object (such as a ). documentObj is optional
                if (documentObj) {
                        if (typeof documentObj == "object"){
                                documentObj.getElementById(objNameStr).style.display = "none";
                        } else {
                                alert("CODE ERROR: The second parameter of tsHideObject must be an object representing the document on which you want to unhide an element. For the current document, you may leave it blank.");
                        }
                } else {
                        if (document.getElementById(objNameStr)){
                                document.getElementById(objNameStr).style.display = "none";
                        }
                }
        }


       function tsShowObject(objNameStr, documentObj){
              // unhides a specified object (such as a ). documentObj is optional
              if (documentObj) {
                     if (typeof documentObj == "object"){
                            documentObj.getElementById(objNameStr).style.display = "block";
                     } else {
                            alert("CODE ERROR: The second parameter of tsShowObject must be an object representing the document on which you want to unhide an element. For the current document, you may leave it blank.");
                     }
              } else {
                     if (document.getElementById(objNameStr)){
                            document.getElementById(objNameStr).style.display = "block";
                     }
              }
       } 

function userPressedSubmit() {
		tsHideObject("submitbutton");
        tsShowObject("submitinprocess");
		document.contactus.submit();
}



// JavaScript Document
Array.prototype.shuffle= function(times){
var i,j,t,l=this.length;
while(times--){
with(Math){
i=floor(random()*l);j=floor(random()*l);}
t=this[i];this[i]=this[j];this[j]=t;
}
return this;
}

var images = new Array("01.gif", "02.gif", "03.gif", "04.gif", "05.gif", "06.gif", "07.gif", "08.gif", "09.gif")

images.shuffle(200);

function showImage1(){
document.write('<a href="javascript:;"><img src="images/' + images[0] + '"name="Image1" width="46" height="46" border="0" id="Image1" onMouseOver="MM_swapImage(' + "'Image1','','images/blank1.gif'" + ',1)" onMouseOut="MM_swapImgRestore()" onClick="MM_openBrWindow('+"'http://www.tangmedia.com/work.htm','Tangmedia','status=yes,width=800,height=600')"+'"></a>');
}
function showImage2(){
document.write('<a href="javascript:;"><img src="images/' + images[1] + '"name="Image2" width="46" height="46" border="0" id="Image2" onMouseOver="MM_swapImage(' + "'Image2','','images/blank2.gif'" + ',1)" onMouseOut="MM_swapImgRestore()" onClick="MM_openBrWindow('+"'http://www.tangmedia.com/work.htm','Tangmedia','status=yes,width=800,height=600')"+'"></a>');
}
function showImage3(){
document.write('<a href="javascript:;"><img src="images/' + images[2] + '"name="Image3" width="46" height="46" border="0" id="Image3" onMouseOver="MM_swapImage(' + "'Image3','','images/blank3.gif'" + ',1)" onMouseOut="MM_swapImgRestore()" onClick="MM_openBrWindow('+"'http://www.tangmedia.com/work.htm','Tangmedia','status=yes,width=800,height=600')"+'"></a>');
}
function showImage4(){
document.write('<a href="javascript:;"><img src="images/' + images[3] + '"name="Image4" width="46" height="46" border="0" id="Image4" onMouseOver="MM_swapImage(' + "'Image4','','images/blank4.gif'" + ',1)" onMouseOut="MM_swapImgRestore()" onClick="MM_openBrWindow('+"'http://www.tangmedia.com/work.htm','Tangmedia','status=yes,width=800,height=600')"+'"></a>');
}
function showImage5(){
document.write('<a href="javascript:;"><img src="images/' + images[4] + '"name="Image5" width="46" height="46" border="0" id="Image5" onMouseOver="MM_swapImage(' + "'Image5','','images/blank5.gif'" + ',1)" onMouseOut="MM_swapImgRestore()" onClick="MM_openBrWindow('+"'http://www.tangmedia.com/work.htm','Tangmedia','status=yes,width=800,height=600')"+'"></a>');
}
function showImage6(){
document.write('<a href="javascript:;"><img src="images/' + images[5] + '"name="Image6" width="46" height="46" border="0" id="Image6" onMouseOver="MM_swapImage(' + "'Image6','','images/blank6.gif'" + ',1)" onMouseOut="MM_swapImgRestore()" onClick="MM_openBrWindow('+"'http://www.tangmedia.com/work.htm','Tangmedia','status=yes,width=800,height=600')"+'"></a>');
}
function showImage7(){
document.write('<a href="javascript:;"><img src="images/' + images[6] + '"name="Image7" width="46" height="46" border="0" id="Image7" onMouseOver="MM_swapImage(' + "'Image7','','images/blank7.gif'" + ',1)" onMouseOut="MM_swapImgRestore()" onClick="MM_openBrWindow('+"'http://www.tangmedia.com/work.htm','Tangmedia','status=yes,width=800,height=600')"+'"></a>');
}
function showImage8(){
document.write('<a href="javascript:;"><img src="images/' + images[7] + '"name="Image8" width="46" height="46" border="0" id="Image8" onMouseOver="MM_swapImage(' + "'Image8','','images/blank8.gif'" + ',1)" onMouseOut="MM_swapImgRestore()" onClick="MM_openBrWindow('+"'http://www.tangmedia.com/work.htm','Tangmedia','status=yes,width=800,height=600')"+'"></a>');
}

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 MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

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];}}
}
