css渐变，ff ie

/*firefox*/
	background: -moz-linear-gradient(top, #ECF4FE, #BED6F8 45%, #BED6F8);
	/*ie*/
	FILTER: progid:DXImageTransform.Microsoft.Gradient(gradientType=0,
		startColorStr=#ECF4FE, endColorStr=#BED6F8 );