function chgIssue(s){
	var issue = s;
	if (s == ''){
		issue = getUrlParam('issue');
	}
	if(issue != '' & issue != null){
		document.getElementById('coverpic').src = 'images/cover/' + issue + '.gif';
		document.getElementById('indexarticles').innerHTML = '<div style=\"margin-top:30px;width:100%;text-align:center;color:#888888;\"><img src=http://www.mw35.com/magazine/images/loading.gif align=absmiddle> ÎÄÕÂÄÚÈÝÔØÈëÖÐ...</div>';
		document.ifra.location = 'indexarticles_.asp?issue=' + issue;
	}
}

function getUrlParam(name){
    var reg = new RegExp("(^|&)"+ name +"=([^&]*)(&|$)");
    var r = window.location.search.substr(1).match(reg);
    if (r!=null) return unescape(r[2]); return null;
}

function chkProdBlock(id){
	for(var i = 1; i <= 4; i ++){
		var e = document.getElementById('prod' + i);
		var t = document.getElementById('prodtitle' + i);
		if(i == id){
			e.style.display = 'block';
			t.className = 'title1';
		}
		else{
			e.style.display = 'none';
			t.className = '';
		}
	}
}