function checkStyles(url_css, cls_name, img_src){
	var browserName=navigator.appName;

	if (browserName=="Microsoft Internet Explorer")
	{
		var stsh = document.styleSheets;
		for (i = 0; i < stsh.length; i++){
			if (stsh[i].href == url_css){
				break;
			}
		}

		var rls = stsh[i].rules;
		for (i = 0; i < rls.length; i++){
			if (rls[i].selectorText == cls_name){
				break;
			}
		}

		rls[i].style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+ img_src +"',sizingMethod='scale')";
		rls[i].style.background = "url()";

	}
}

function popUp(URL,w,h) {
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=1,width="+w+",height="+h+"');");
}

var song_win;

function popUpWin(URL,w,h) {
day = new Date();
id = day.getTime();
song_win = window.open(URL, 'song_win', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width='+w+',height='+h);
}