function doPostBackOnEnter(eventTarget, eventArgument, event)
{
	var doPostBack = false;

	if(document.all) // IE
	{
		if(event.keyCode === 13)
		{
		    doPostBack = true;
		}
	}
	else if(document.getElementById) // every other modern browser
	{
		if(event.which === 13) 
		{
		    doPostBack = true;
		}
	}

	if(doPostBack) 
	{
	    __doPostBack(eventTarget, eventArgument);
	}
}