function openCatalog(wUrl){
	var url=wUrl;
	var scWidth=screen.availWidth
	var scHeight=screen.availHeight;
	if(scWidth<=1024){
		scWidth=scWidth-12;
	}else{
		scWidth=1024;
	}
	if(scHeight<=768){
		scHeight=scHeight-50;
	}else{
		scHeight=768;
	}
	var option="toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=1,left=0,screenX=0,top=0,screenY=0,width="+scWidth+",height="+scHeight;
	catalogWin=window.open(url,'cata_win',option);
	catalogWin.window.focus();
}