// JScript File

var visibleLayer='layer01';
var openTab='';

function change(element,ahref) {
	if (element!=visibleLayer)
	{ 
		/*changing visibility*/
		document.getElementById(visibleLayer).style.display='none';
		document.getElementById(element).style.display='block';
		
		/*changing classes*/
		openTab.className=openTab.className.replace('selected','');
		ahref.parentNode.className=ahref.parentNode.className+'selected';

		/*resetting global variables*/		
		openTab=ahref.parentNode;
		visibleLayer=element;
	}
	
}

function initPage(){
	openTab=getElementsByClassName(document,'box-offerselected')[0];
}

addEvent(window, 'load', initPage);
/*Generic functions*/
function getElementsByClassName(node, classname){
    var a = [];
    var re = new RegExp('(^| )'+classname+'( |$)');
    var els = node.getElementsByTagName("*");
    for(var i=0,j=els.length; i<j; i++)
        if(re.test(els[i].className))a.push(els[i]);
    return a;
}
function addEvent(obj, evType, fn){ 
	if (obj.addEventListener){ 
		obj.addEventListener(evType, fn, false); 
		return true; 
	} else if (obj.attachEvent){ 
		var r = obj.attachEvent("on"+evType, fn); 
		return r; 
	} else { 
		return false; 
	} 
}