function isEmpty(str){
	return $.trim(str).length>0?false:true;
}
function showDialogCenter(dialog){
	dialog.css({"left":$(window).scrollLeft()+($(window).width()-dialog.width())/2,"top":$(window).scrollTop()+($(window).height()-dialog.height())/2});
}
function isDecimal(str){
	/*if(/[^\\.\\d]/gmi.test(str)){
		return false;
	}else{
		return new RegExp("([1-9]+[0-9]*|0)(\\.[\\d]+)?/gm").test(str);  
	}*/
	return !(/[^.\d]/gmi.test(str));
}
function initTabs(tabs){
	$tabsNaviLi=tabs.find(".tabsNavi li");
	$tabsItemDiv=tabs.find(".tabsItem > div");
	$tabsNaviLi.eq(0).attr("class","tabsNaviFocus").siblings().removeAttr("class");
	$tabsItemDiv.attr("class","tabsItemFocus").hide().eq(0).show();
	$tabsNaviLi.each(function(index){
		$(this).click(function(){
			$(this).attr("class","tabsNaviFocus").siblings().removeAttr("class");
			tabs.find(".tabsItem > div").eq(index).show().siblings().hide();
		});
	});
}