var nav = (document.layers) ? true : false;
var iex = (document.all) ? true : false;

function imgHover(el){
	var file = el.src;
	if (file.indexOf('_hv') == -1){
		var parts = file.split('.');
		el.src = parts[0]+'_hv'+'.'+parts[1];
	} else el.src = el.src.replace(/_hv/,'');
}

function changeBGColor(name,color) {
  if(iex) { 
    document.all['' + name].style.backgroundColor = color;
  } else if (nav) { 
    document.layers['' + name].backgroundColor = color;
  } else {
    document.getElementById('' + name).style.backgroundColor = color;
  }
}


function blurb(obj) {
  if (navigator.appName == 'Microsoft Internet Explorer') {
    obj.blur();
  }
}