var saveWidth = 0;

function scaleImg(item) 
{
	if ((item instanceof String) || (typeof item == "string")) {
		item = document.getElementById(item);
	}
	
	if (navigator.appName=="Netscape") {
		winW = window.innerWidth;
	}
	
	if (navigator.appName.indexOf("Microsoft")!=-1) {
		winW = document.body.offsetWidth;
	}

	if (item.width>(700) || saveWidth>(700)) {
		if (item.width==(700)) {
			item.width=saveWidth;
		} else {
			saveWidth = item.width;
			item.style.cursor = "pointer";
			item.width=(700);
		}
	}
}