function Show(str) {
x = document.getElementById(str);
x.style.display = 'block';
}

  function Hide(str) {
x = document.getElementById(str);
x.style.display = 'none';
}


if(document.getElementsByTagName) {
var a = document.getElementsByTagName("a");
//collect all anchors A
for(var i = 0; i < a.length; i++){
// mouse onfocus, blur anchors
a[i].onfocus = function(){this.blur();};
}
}