function tab_init (x) {


	for (j=0;j<x.length;j++) {
		coll[j] = document.getElementById(x[j]).getElementsByTagName("A");
		for (i=0;i<coll[j].length;i++) {
			coll[j][i].onclick = activate;
		}
		coll[j][0].className = "active";
		activeTab[j] = coll[j][0];

		var target = coll[j][0].name+"_";
		activeImg[j] = document.getElementById(target);
	}

}

function activate () {

	for (i=0;i<arr.length;i++) {
		if (this.parentNode.id==arr[i])
			{ j = i; break;
			}
}

    if (activeTab[j]) {
		activeTab[j].className = "";
	}
	this.className = 'active';
	activeTab[j] = this;
	//display (this);


}

function display (what) {
	var target = what.name+"_";
    if (document.body.activeDiv) {
		document.body.activeDiv.style.display = "none";
	}
	document.getElementById(target).style.display = "block";
	document.body.activeDiv = document.getElementById(target);
}