function validchars(sno)
  {    
   var bv= true; 
   var newstr = sno.replace(' ', '');
   var re = new RegExp (' ', 'gi') ;
   var newstr = sno.replace(re, '') ;
   var rem = new RegExp ('-', 'gi') ;
   newstr= newstr.replace(rem,''); 
   var iTest = Number(newstr);
   var iTest2=newstr.length;
   if(isNaN(iTest))
    {
     bv=false;
     
    }
   if(iTest2<9)
    {
     bv=false;
     
    }  
   return(bv);  
  }
function checkForm()
	{
	obj=document.forms["f_enquiry"];

	if(obj.name.value.length==0)
		{
		alert("Please enter your name.");
		return false;
		}
	if(obj.enquiry.value.length==0)
		{
		alert("Please enter your enquiry details.");
		return false;
		}
	if(obj.phone.value.length!=0)
	{
	if(!validchars(obj.phone.value))
		{
    	alert('Please enter a full telephone number.');
		return false;
		}
	}			

if(obj.email.value.length!=0)
{
var testresults
var str=obj.email.value
var filter=/^.+@.+\..{2,3}$/

if (!filter.test(str))
		{
alert("Please enter a valid email address!")
return false;
}
}

	return true;
	}