// JavaScript Document //v3.0
<!--
//---------------------------------------------------//
//              Contact Validation                   //
//---------------------------------------------------//


   function ValidateForm(f){

      with(f){
         if (isEmpty(_1_Name.value)) {
            alert("Please enter your Name");
            _1_Name.focus();
            return false;
         }

         if (isEmpty(_2_Email_From.value)) {
            alert("Please enter your Email Address");
            _2_Email_From.focus();
            return false;
         }

         if ( !isEmail(_2_Email_From.value) ) {
            alert("Please enter a valid Email Address.");
            _2_Email_From.focus();
            return false;
         }
		 
		 if (isEmpty(_3_Phone.value)) {
            alert("Please enter your Phone number");
            _3_Phone.focus();
            return false;
         }
		 
		if (isEmpty(_4_Comments.value)) {
            alert("Please enter your query in the comments field");
            _4_Comments.focus();
            return false;
         }
       
   	}
   return true;
 }
 
 
//---------------------------------------------------//
//                     Nav Stuff                     //
//---------------------------------------------------//



function MM_preloadImages() { 
  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];}
}
MM_preloadImages('images/nav/nav_home_r.jpg','images/nav/nav_about_r.jpg','images/nav/nav_cleaning_r.jpg','images/nav/nav_internal_r.jpg','images/nav/nav_external_r.jpg','images/nav/nav_contact_r.jpg')