function switcher(id){

	div = 'vis_'+id;

	

	obj = document.getElementById(div);

    if(obj.style.display != 'none') obj.style.display = 'none';	

	else obj.style.display = 'block';



	div2 = 'info_'+id;

	

	obj2 = document.getElementById(div2);

    if(obj2.style.display != 'block') obj2.style.display = 'block';	

	else obj2.style.display = 'none';

}



Array.prototype.in_array = function(obj){ 

    return new RegExp('(^|\,)'+obj+'(\,|$)','gi').test(this);

  }



var tagsArray = new Array();

var i = 0;

function addTags(tag){

        obj = document.getElementById('tags');		

		if(tagsArray.in_array(tag)==false)obj.value = obj.value+tag+',';    		

   		tagsArray[i] = tag;

		i=++i;



    }
    
    
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;