/*按比例生成缩略图*/
function DrawImage(ImgD,W,H){ 
  var flag=false; 
  var image=new Image(); 
  image.src=ImgD.src; 
  if(image.width>0 && image.height>0){ 
    flag=true; 
    if(image.width/image.height>= W/H){ 
      if(image.width>W){
        ImgD.width=W; 
        ImgD.height=(image.height*H)/image.width; 
      }
	  else{ 
        ImgD.width=image.width;
        ImgD.height=image.height; 
      } 
      ImgD.alt= ""; 
    } 
    else{ 
      if(image.height>H){
        ImgD.height=H; 
        ImgD.width=(image.width*W)/image.height; 
      }
	  else{ 
        ImgD.width=image.width;
        ImgD.height=image.height; 
      } 
      ImgD.alt=""; 
    } 
  }
}

 function fm_Check(fm_search) //查询检测
{
		{ 
		  var flag=true;
		  if(fm_search("search_name").value=="")
	      {
           alert("请输入查询关键字");
		   fm_search("search_name").focus();
		   return false;
		   }
		   if(fm_search("sel_style").value=="0")
	       {
             alert("请选择搜索类别");
		     //fm_login("password").focus();
		     return false;
		   }		 
         return flag;
		 }		
}