var zoomobj = Array();var zoomadjust;var zoomstatus = 1;
var zoomdragstart = new Array();
var zoomclick = 0;
var userAgent = navigator.userAgent.toLowerCase();
var is_opera = userAgent.indexOf('opera') != -1 && opera.version();
var is_moz = (navigator.product == 'Gecko') && userAgent.substr(userAgent.indexOf('firefox') + 8, 3);
var is_ie = (userAgent.indexOf('msie') != -1 && !is_opera) && userAgent.substr(userAgent.indexOf('msie') + 5, 3);
var msgwidth = 0;
function doane(event) {
	e = event ? event : window.event;
	if(is_ie) {
		e.returnValue = false;
		e.cancelBubble = true;
	} else if(e) {
		e.stopPropagation();
		e.preventDefault();
	}
}
function zoomimgadjust(e, a) {
	if(!a) {
		if(!e) e = window.event;
		if(e.altKey || e.shiftKey || e.ctrlKey) return;
		var l = parseInt($E('zoomimglayer').style.left);
		var t = parseInt($E('zoomimglayer').style.top);
		if(e.wheelDelta <= 0 || e.detail > 0) {
			if($E('zoomimg').width <= 200 || $E('zoomimg').height <= 200) {
				doane(e);return;
			}
			$E('zoomimg').width -= zoomobj['zimginfo'][0] / 10;
			$E('zoomimg').height -= zoomobj['zimginfo'][1] / 10;
			l += zoomobj['zimginfo'][0] / 20;
			t += zoomobj['zimginfo'][1] / 20;
		} else {
			if($E('zoomimg').width >= zoomobj['zimginfo'][0]) {
				zoomimgadjust(e, 1);return;
			}
			$E('zoomimg').width += zoomobj['zimginfo'][0] / 10;
			$E('zoomimg').height += zoomobj['zimginfo'][1] / 10;
			l -= zoomobj['zimginfo'][0] / 20;
			t -= zoomobj['zimginfo'][1] / 20;
		}
	} else {
		var clientHeight = document.documentElement.clientHeight ? document.documentElement.clientHeight : document.body.clientHeight;
		var scrollTop = document.body.scrollTop ? document.body.scrollTop : document.documentElement.scrollTop;
		$E('zoomimg').width = zoomobj['zimginfo'][0];$E('zoomimg').height = zoomobj['zimginfo'][1];
		var l = (document.body.clientWidth - $E('zoomimg').clientWidth) / 2;l = l > 0 ? l : 0;
		var t = (clientHeight - $E('zoomimg').clientHeight) / 2 + scrollTop;t = t > 0 ? t : 0;
	}
	$E('zoomimglayer').style.left = l + 'px';
	$E('zoomimglayer').style.top = t + 'px';
	$E('zoomimglayer_bg').style.height = t + $E('zoomimglayer').clientHeight > $E('zoomimglayer_bg').clientHeight ? (t + $E('zoomimglayer').clientHeight) + 'px' : $E('zoomimglayer_bg').style.height;
	doane(e);
}
function fetchOffset(obj) {
	var left_offset = obj.offsetLeft;
	var top_offset = obj.offsetTop;
	while((obj = obj.offsetParent) != null) {
		left_offset += obj.offsetLeft;
		top_offset += obj.offsetTop;
	}
	return { 'left' : left_offset, 'top' : top_offset };
}
function zoomST(c) {
	if($E('zoomimglayer').style.display == '') {
		$E('zoomimglayer').style.left = (parseInt($E('zoomimglayer').style.left) + zoomobj['x']) + 'px';
			if(is_ie||is_moz){
		$E('zoomimglayer').style.top = (parseInt($E('zoomimglayer').style.top) + zoomobj['y']) + 'px';
		
		}else{
				$E('zoomimglayer').style.top = (parseInt($E('zoomimglayer').style.top)) + 'px';
			
			}
			$E('zoomimglayer').style.width = (parseInt($E('zoomimglayer').style.width) + zoomobj['w']) + 'px';
		$E('zoomimglayer').style.height = (parseInt($E('zoomimglayer').style.height) + zoomobj['h']) + 'px';
		var opacity = c * 20;
		$E('zoomimglayer').style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=' + opacity + ',finishOpacity=100,style=0)';
		$E('zoomimglayer').style.opacity = opacity / 100;
		c++;
		if(c <= 5) {
			setTimeout('zoomST(' + c + ')', 5);
		} else {
			zoomadjust = 1;
			$E('zoomimglayer').style.filter = '';
			$E('zoomimglayer_bg').style.display = '';
			$E('zoomimglayer').innerHTML = '<table cellspacing="0" cellpadding="2"><tr><td style="color:#ff4400;">&nbsp;' + zoomobj['title'] + '</td><td style="text-align: right">鼠标滚轮缩放图片 <a href="' + zoomobj['zimg'] + '" target="_blank"><img src="/images/newwindow.gif" border="0" style="vertical-align: middle" title="在新窗口打开" /></a> <a href="###" onclick="zoomimgadjust(event, 1)"><img src="/images/resize.gif" border="0" style="vertical-align: middle" title="实际大小" /></a> <a href="javascript:zoomclose();"><img style="vertical-align: middle" src="/images/close.gif" border="0" title="关闭" /></a>&nbsp;</td></tr><tr><td align="center" id="zoomimgbox" colspan="2"><img id="zoomimg" style="cursor: move; margin: 5px;" src="' + zoomobj['zimg'] + '" width="' + $E('zoomimglayer').style.width + '" height="' + $E('zoomimglayer').style.height + '"></td></tr></table>';
			$E('zoomimglayer').style.overflow = 'visible';
			$E('zoomimglayer').style.width = $E('zoomimglayer').style.height = 'auto';
			if(is_ie){
				$E('zoomimglayer').onmousewheel = zoomimgadjust;
			} else {
				$E('zoomimglayer').addEventListener("DOMMouseScroll", zoomimgadjust, false);
			}
			$E('zoomimgbox').onmousedown = function(event) {try{zoomdrag(event, 1);}catch(e){}};
			$E('zoomimgbox').onmousemove = function(event) {try{zoomdrag(event, 2);}catch(e){}};
			$E('zoomimgbox').onmouseup = function(event) {try{zoomdrag(event, 3);}catch(e){}};
		}
	}
}
function zoomimgresize(obj) {
	zoomobj['zimginfo'] = [obj.width, obj.height];
	var r = obj.width / obj.height;
	var w = document.body.clientWidth * 0.95;
	w = obj.width > w ? w : obj.width;
	var h = w / r;
	var clientHeight = document.documentElement.clientHeight ? document.documentElement.clientHeight : document.body.clientHeight;
	var scrollTop = document.body.scrollTop ? document.body.scrollTop : document.documentElement.scrollTop;
	if(h > clientHeight) {
		h = clientHeight;
		w = h * r;
	}
	var l = (document.body.clientWidth - w) / 2;
	var t = h < clientHeight ? (clientHeight - h) / 2 : 0;
	t += + scrollTop;
	zoomobj['x'] = (l - zoomobj['srcinfo']['left']) / 5;
	zoomobj['y'] = (t - zoomobj['srcinfo']['top']) / 5;
	zoomobj['w'] = (w - zoomobj['srcobj'].width) / 5;
	zoomobj['h'] = (h - zoomobj['srcobj'].height) / 5;
	$E('zoomimglayer').style.filter = '';
	$E('zoomimglayer').innerHTML = '';
	setTimeout('zoomST(1)', 5);
}

function zoom(obj,zimg,texts) {
$E('EqualPrincipalForm').style.visibility='hidden';
if(!$E('zoomimglayer_bg')){
div = document.createElement('div');
div.id = 'zoomimglayer_bg';
div.style.position = 'absolute';
div.style.left = div.style.top = '0px';
div.style.width = '100%';
div.style.height = document.body.scrollHeight + 'px';
		div.style.backgroundColor = '#000';
		div.style.display = 'none';
		div.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=80,finishOpacity=100,style=0)';
		div.style.opacity = 0.8;
		div.style.zIndex = 998;
		$E('append_parent').appendChild(div);
		div = document.createElement('div');div.id = 'zoomimglayer';
		div.style.position = 'absolute';
		div.className = 'popupmenu_popup';
		div.style.padding = 0;
		$E('append_parent').appendChild(div);
}
zoomobj['title']=texts;
zoomobj['srcinfo'] = fetchOffset(obj);
zoomobj['srcobj'] = obj;
zoomobj['zimg'] = zimg;
$E('zoomimglayer').style.display = '';
$E('zoomimglayer').style.left = zoomobj['srcinfo']['left'] + 'px';
$E('zoomimglayer').style.top = zoomobj['srcinfo']['top'] + 'px';
$E('zoomimglayer').style.width = zoomobj['srcobj'].width + 'px';
$E('zoomimglayer').style.height = zoomobj['srcobj'].height+2 + 'px';
$E('zoomimglayer').style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=40,finishOpacity=100,style=0)';
$E('zoomimglayer').style.opacity = 0.4;
$E('zoomimglayer').style.zIndex = 999;
$E('zoomimglayer').innerHTML = '<table width="100%" height="100%" cellspacing="0" cellpadding="0"><tr><td align="center" valign="middle"><img src="/images/loading.gif"></td></tr></table><div style="position:absolute;top:-100000px;visibility:hidden"><img onload="zoomimgresize(this)" src="' + zoomobj['zimg'] + '"></div>';
}
function zoomdrag(e, op) {
	if(op == 1) {
		zoomclick = 1;
		zoomdragstart = is_ie ? [event.clientX, event.clientY] : [e.clientX, e.clientY];
		zoomdragstart[2] = parseInt($E('zoomimglayer').style.left);
		zoomdragstart[3] = parseInt($E('zoomimglayer').style.top);
		doane(e);
	} else if(op == 2 && zoomdragstart[0]) {
		zoomclick = 0;
		var zoomdragnow = is_ie ? [event.clientX, event.clientY] : [e.clientX, e.clientY];
		$E('zoomimglayer').style.left = (zoomdragstart[2] + zoomdragnow[0] - zoomdragstart[0]) + 'px';
		$E('zoomimglayer').style.top = (zoomdragstart[3] + zoomdragnow[1] - zoomdragstart[1]) + 'px';
		doane(e);
	} else if(op == 3) {
		if(zoomclick) zoomclose();
		zoomdragstart = [];
		doane(e);
	}
}
function zoomclose() {
	$E('EqualPrincipalForm').style.visibility = 'visible';
	$E('zoomimglayer').innerHTML = '';
	$E('zoomimglayer').style.display = 'none';
	$E('zoomimglayer_bg').style.display = 'none';
}