var flag=false;
function imgSize(ImgD){
	var image=new Image();
	var iwidth = 120; 
	var iheight = 100;
	image.src=ImgD.src;
	if(image.width>0&&image.height>0){
		flag=true;
		if(image.width/image.height>=iwidth/iheight){
			if(image.width>iwidth){ 
				ImgD.width=iwidth;
				ImgD.height=(image.height*iwidth)/image.width;
				}else{
				ImgD.width=image.width; 
				ImgD.height=image.height;
			}
		}
	else{
		if(image.height>iheight){ 
			ImgD.height=iheight;
			ImgD.width=(image.width*iheight)/image.height; 
		}else{
			ImgD.width=image.width; 
			ImgD.height=image.height;
		}
	  }
	}
  }