var dpXHR = '/_xhr/';

function ask(txt,url,useTop){
	if(confirm(txt)){
		if(useTop == 1){
			top.location.href = url;	
		} else {
			window.location.href = url;	
		}	
	}
}

document.getElementsByClassName = function(cl) {
	var retnode = [];
	var myclass = new RegExp('\\b'+cl+'\\b');
	var elem = this.getElementsByTagName('*');
	for (var i = 0; i < elem.length; i++) {
		var classes = elem[i].className;
		if (myclass.test(classes)) retnode.push(elem[i]);
	}
	return retnode;
};