function validateNews()
{
	formObj = document.news;
	var string = formObj.newsFile.value;
	if(formObj.newsFile.value)
	{
		var extension = string.substring(string.length-3,string.length);
		extension = extension.toLowerCase();
		switch(extension)
		{
			case "jpg":
			case "gif":
			case "jpeg":
			case "png":
			case "txt":
			case "html":
			case "htm":
			case "ppt":
			case "doc":
			case "pdf":
			case "zip":
			case "rtf":
			case "xls":
			case "mdb":
			case "xml":
				formObj.filename.focus();
				return true;
				break;
			default:
				message = "Not a valid image type!! \n Supported are jpeg,gif,jpeg,png,txt,html,htm,ppt,doc,pdf,zip,rtf,xls,mdb,xml";
				alert(message);
				formObj.filename.focus();
				return false;
				break;
		}	
			confirm(extension);
	}
}
function validateImage()
{
	formObj	=	document.image;
	var image	=	formObj.image.value;
	if(image=="")
	{
		alert("You must have an image");
		return false;
	}
	else
	{
		var extension =image.substring(image.length-3,image.length);
		if(extension=="jpg" || extension=="JPG")
		{
			formObj.image.focus();
			return true;
		}
		else
		{
			alert("Sorry only jpg allowed here");
			formObj.image.focus();
			return false;
		}
	}
}
	
function validatePostcode()
{
	formObj = document.contactus;
	var postcode	=	formObj.postcode.value;
	if(postcode=="")
	{
		message	=	"You must enter a postcode!"
		alert(message);	
		return false;
	}

}