function chkF(field,alerttxt,reject){
	with (field) {
		if (value==null||value==""||value==reject){
			alert(alerttxt);
			return false
		} else { return true }
	}
}

function chkE(field,alerttxt){
	with (field){
		apos=value.indexOf("@")
		dotpos=value.lastIndexOf(".")
		if (apos<1||dotpos-apos<2) 
			  {alert(alerttxt);return false}
		else {return true}
	}
}

function helpform(thisForm) {
	with (thisForm){
		if (chkF(name, "Please enter your name.", "asd")==false){
			name.focus();
			return false
		}
		
		if (chkF(phone,"Please enter your Contact Number", "asd")==false){
			phone.focus();
			return false
		}
		
		if (chkE(email,"Sorry that isn't a valid Email Address")==false){
			email.focus();
			return false
		}
		
	}
}

function changeImg(img) {
	if(img.src.match("-over")) {
		img.src = img.src.split("-over").join("-butt");
	} else {
		img.src = img.src.split("-butt").join("-over");
	}
}


function newwin(lnk) {
	window.open(lnk.href, 'newwindow','toolbar=yes, location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,copyhistory=yes, resizable=yes');
	return false;
}