function formcheck() {
		allokay = true
		if ((document.booking.firstname.value == "") && allokay)
				{
		        alert("Please enter your first name.") 
	    	    document.booking.firstname.focus()    
		        allokay = false 
	   		  }
		if ((document.booking.lastname.value == "") && allokay)
				{
		        alert("Please enter your last name.") 
	    	    document.booking.lastname.focus()    
		        allokay = false 
	   		  }
		if ((document.booking.telephone.value == "") && allokay)
				{
		        alert("Please enter your contact telephone number.") 
	    	    document.booking.telephone.focus()    
		        allokay = false 
	   		  }
			if ((document.booking.email.value == "") && allokay) {
	        alert("Please enter your e-mail address.") 
	   	    document.booking.email.focus()    
	        allokay = false 
		}
	
	if( ( (document.booking.email.value == "") || (document.booking.email.value.indexOf(".") == -1) || (document.booking.email.value.indexOf("@") == -1) ) && allokay ) {
			alert("Please enter a valid e-mail address")
			document.booking.email.focus()
			allokay = false
		} 
		if ((document.booking.comments.value == "") && allokay)
				{
		        alert("Please enter your enquiry.") 
	    	    document.booking.comments.focus()    
		        allokay = false 
	   		  }
		if( allokay ) {
				document.booking.submit()
			}
		}