function ppshow() { 
for(i=0; i<document.images.length;i++){ 
if(document.images[i].width>300) { 
document.images[i].width=300 
} else { 
document.images[i].width=document.images[i].width 
} 
} 
} 

function ppshow(image) { 
	if(image.width>300) { 
		image.width=300
	} else { 
		image.width=image.width 
	}
	if(image.height>180)
    { 
        image.width=300*image.width/image.height;
        image.height=180;
     }
} 


function resizeImg(obj) { 
	var obj = document.getElementById(obj); 
	var objContent = obj.innerHTML;
	var imgs = obj.getElementsByTagName('img'); 
	var imgCount = imgs.length;
	var maxw=300;
	var maxh=200;
    if(imgCount==0) return;
    for(var i=0; i<imgCount; i++) {
    	var oldw = imgs[i].width;
        var oldh = imgs[i].height;
        if(imgs[i].width>maxw) {
            imgs[i].style.width = maxw +'px';
        }
        if(imgs[i].height>maxh)
    	{
            imgs[i].style.width =(maxw*oldw/oldh) +'px';
        	imgs[i].style.height = maxh;
        }
    }
} 

function resizeImg(obj,w,h) { 
	var obj = document.getElementById(obj); 
	var objContent = obj.innerHTML;
	var imgs = obj.getElementsByTagName('img'); 
	var imgCount = imgs.length;
	var maxw=w;
	var maxh=h;
    if(imgCount==0) return;
    for(var i=0; i<imgCount; i++) {
    	var oldw = imgs[i].width;
        var oldh = imgs[i].height;
        if(imgs[i].width>maxw) {
            imgs[i].style.width = maxw +'px';
        }
        if(imgs[i].height>maxh)
    	{
            imgs[i].style.width =(maxw*oldw/oldh) +'px';
        	imgs[i].style.height = maxh;
        }
    }
}