function checkfilled(Obj1,name,switcher) {
	var FormOk = true;
	if(switcher==1){
		if (Obj1.value == '') { 
			alert('The ' + name + ' field must be filled in to continue.');
			Obj1.focus();
			FormOk = false;
		}
	} else if(switcher==2) {
		if(Obj1.value=='' || (isNaN(Obj1.value) || (Obj1.value < 0))){
			alert(name +' field must be filled with a number to continue');
			Obj1.focus();
			FormOk = false;
		}
	} else if(switcher==3) {
		if(Obj1=='0'){
			alert(name +' field must be completed to continue');
			Obj1.focus();
			FormOk = false;
		}
	}else{
		if(Obj1.value!='' && (isNaN(Obj1.value) || (Obj1.value < 0))){
			alert(name +'field must contain a number of zero or more');
			Obj1.focus();
			FormOk = false;
		}
	}

	return FormOk;
}

function IsEmailValid(FormName,ElemName)
{
//alert(FormName + " " + ElemName);
var FormOk  = true
var Temp     = document.forms[FormName].elements[ElemName]
var AtSym    = Temp.value.indexOf('@')
var Period   = Temp.value.lastIndexOf('.')
var Space    = Temp.value.indexOf(' ')
var Length   = Temp.value.length - 1   // Array is from 0 to length-1

if ((AtSym < 1) ||                     // '@' cannot be in first position
    (Period <= AtSym+1) ||             // Must be atleast one valid char btwn '@' and '.'
    (Period == Length ) ||             // Must be atleast one valid char after '.'
    (Space  != -1))                    // No empty spaces permitted
   {  
      alert('Please enter a valid e-mail address!')
	  Temp.focus()
	  FormOk = false;
   }
return FormOk;
}

function selectBox(Obj1,Obj2,name){
	var FormOk = true;

	if(Obj1.value == 'x'){
		alert("In order to proceed, please choose a value in the " + name + " field")
		Obj2.focus();
		FormOk = false;
	}
return FormOk;
}

function brochure(Obj1,Obj2,Obj3){
	var FormOk = true;

	if(Obj1.checked && Obj2.value == ""){
		alert("In order to proceed, please choose a value in the Address field")
		Obj2.focus();
		FormOk = false;
	}else if(Obj1.checked && Obj3.value == ""){
		alert("In order to proceed, please choose a value in the Post Code field")
		Obj3.focus();
		FormOk = false;
	}
return FormOk;
}