/******************************************************
* 
按钮控制窗体内容的放大和缩小
 Share JavaScript (http://www.ShareJS.com)
* 使用此脚本程序，请保留此声明
* 获取此脚本以及更多的JavaScript程序，请访问 http://www.ShareJS.com
******************************************************/

 <!--
	var zoomRate = 20;
	var maxRate = 500;
	var minRate = 50;
	var currZoom = 100;

	//document.onkeypress = getKey;
	//window.onload = initZoom;
	
	function GetCookie(name){
		if (document.cookie != "") {
			zoomc = document.cookie.split("; ");
			for (var i=0; i < zoomc.length; i++) {
                zoomv = zoomc[i].split("="); 
                if (zoomv[0] == name) {
				    return  unescape(zoomv[1]);
                }
			}        
		}else{
			return "";
		}
	}

	function SetCookie(name,value){
		document.cookie = name + "=" + escape (value)+";";
	}
	

	function zoomInOut(contentid, how) {
		if(GetCookie("zoomVal") != null && GetCookie("zoomVal") != ""){
			document.all[contentid].style.zoom = GetCookie("zoomVal");
			currZoom=GetCookie("zoomVal");
		}
		else{
			document.all[contentid].style.zoom = '100%'; 

			currZoom = '100%';
		}
		if (((how == "in") && (parseInt(currZoom) >= maxRate)) || ((how == "out") && (parseInt(currZoom) <= minRate)) ) {
			return; 
		}
		if (how == "in") {
			document.all[contentid].style.zoom = parseInt(document.all[contentid].style.zoom)+zoomRate+'%';
		}
		else {
			document.all[contentid].style.zoom = parseInt(document.all[contentid].style.zoom)-zoomRate+'%'
		}
		SetCookie("zoomVal",document.all[contentid].style.zoom);
		showCurrZoom(contentid);
	}
	
	
	function initZoom(contentid) {
		if(GetCookie("zoomVal") != null && GetCookie("zoomVal") != ""){
			document.all[contentid].style.zoom = GetCookie("zoomVal");
			currZoom=GetCookie("zoomVal");
		}
		else{
			document.all[contentid].style.zoom = '100%'; 
			currZoom = '100%';
		}
		showCurrZoom(contentid);
	}
	
	function showCurrZoom(contentid) {
	    document.all['showZoom'].innerText = document.all[contentid].style.zoom;
	}