function ValidateContact( varname, varmail, varinvalidemail, varcomments){
	if(document.getElementById('name').value.length==0){
		alert(varname);
		document.getElementById('name').focus;
		return(false);
	}
	if(document.getElementById('email').value.length==0){
		alert(varmail);
		document.getElementById('email').focus;
		return(false);
	}
	if(document.getElementById('email').value.length>0){
		if (!ValidateEmail(document.getElementById('email').value)){
			alert(varinvalidemail);
			document.getElementById('email').focus;
			return(false);
		}
	}	
	if(document.getElementById('comments').value.length==0){
		alert(varcomments);
		document.getElementById('comments').focus;
		return(false);
	}
	
	return(true);
}