function imgOnLoad(){
	if(this.width>_width){
		this.width=_width;
		this.style.cursor="pointer";
		this.alt="点击查看大图";
		this.onclick=function(){window.open('/s/pic.html?'+this.src);};
	}
}
var _img=_text.getElementsByTagName("img");
for(var i=0;i<_img.length;i++){
	if(_img[i].complete){
		if(_img[i].width>_width){
			_img[i].width=_width;
			_img[i].style.cursor="pointer";
			_img[i].alt="点击查看大图";
			_img[i].onclick=function(){window.open('/s/pic.html?'+this.src);};
		}
	}else{
		_img[i].onload=imgOnLoad;
	}
}