function toggle(e) {
	var el = document.getElementById(e);
	if ( el.style.display != 'none' ) {
		el.style.display = 'none';
	}
	else {
		el.style.display = 'block';
	}
}

function toggle_off(e){
	var el = document.getElementById(e);
	if(el.style.display == "block") {
		el.style.display = "none";
	}
}

function disable(e)
{
	document.getElementById(e).disabled=true
}

function uncheck(e)
{
	if ( document.getElementById(e).checked=true ) {
		document.getElementById(e).checked=false;
}
}

function setFocus(e)
{
	document.getElementById(e).focus()
}

function click(e)
{
	document.getElementById(e).click()
}

function externalLinks() {
 if (!document.getElementsByTagName) return;
 var anchors = document.getElementsByTagName("a");
 for (var i=0; i<anchors.length; i++) {
   var anchor = anchors[i];
   if (anchor.getAttribute("href") &&
       anchor.getAttribute("rel") == "external")
     anchor.target = "_blank";
 }
}
window.onload = externalLinks;