function checkEnter(formSubmit,formParameters,e)
{
	var characterCode = '';

	 //if which property of event object is supported (NN4)
	if(e && e.which)
	{
		e = e;
		characterCode = e.which;
	} else {
	//character code is contained in IE's keyCode property
		e = event;
		characterCode = e.keyCode;
	}
	//if generated character code is equal to ascii 13 (if enter key)
	if(characterCode == 13)
	{ 
		if (eval(formSubmit)){
			eval(formSubmit+'('+formParameters+')');
		} 
		return false;
	} else {
		return true;
	}
}