var maxW,maxH,fromX,fromY,toX,toY,adjX,adjY,zBox,zStep=0,zLink,zNew,imgID;

var n = (document.layers) ? 1:0;

var ie = (document.all) ? 1:0;



function overTip(boxObj) {

	if (ie) {

		boxObj.style.visibility = "visible";

		boxObj.filters.item(0).stop();

	}

}



function outTip(boxObj) {

	if (ie) {

		boxObj.style.visibility = "visible";

		boxObj.filters.item(0).transition = 12;

		boxObj.filters.item(0).apply();

		boxObj.style.visibility = "hidden";

		boxObj.filters.item(0).play();

	}

}



function zoomBox(evt,zlink,maxw,maxh,tox,toy,imgid)

{

	if (arguments.length > 2) zNew=1;



	scrollH = (window.pageYOffset!=null) ? window.pageYOffset : document.body.scrollTop;

	maxW = maxw ? maxw : window.innerWidth ? innerWidth :document.body.clientWidth;

	maxH = maxh ? maxh : window.innerHeight ? innerHeight : document.body.clientHeight;

	toX = tox ? tox : 0;

	toY = (toy ? toy : 0) + scrollH;

	fromX = evt.pageX ? evt.pageX : evt.clientX;

	fromY = (evt.pageY ? evt.pageY : evt.clientY) + (document.all ? scrollH : 0);

	adjX = toX + evt.screenX - fromX;

	adjY= toY + evt.screenY - fromY;



	if (document.createElement && document.body.appendChild && !zBox) 

	{

		zBox=document.createElement("div");

		zBox.style.position="absolute";

		document.body.appendChild(zBox);

	}

	else if (document.all && !zBox) 

	{

		document.all[document.all.length-1].outerHTML+='<div id="zBoxDiv" style="position:absolute"></div>';

		zBox=document.all.zBoxDiv;

	}

	else if (document.layers && !zBox) 

	{

		zBox=new Layer(maxW);

		zBox.style=zBox;

	}

	

	zLink=zlink;

	imgID=imgid;

	doZoom();

}



function doZoom() 

{

	zStep+=1;

	zPct=(10-zStep)/10



	if (document.layers)

	{

		zBox.moveTo(toX+zPct*(fromX-toX),toY+zPct*(fromY-toY));

		zBox.document.open();

		zBox.document.write("<table width='"+maxW*(1-zPct)+"' height="+maxH*(1-zPct)+" border=2 cellspacing=0><tr><td><img src='data/15/hma304_1.jpg'></td></tr></table>");

		zBox.document.close();

	} 

	else 

	{

		zBox.style.border="1px solid #000000"; // zoom β  

		zBox.style.left=toX+zPct*(fromX-toX);

		zBox.style.top=toY+zPct*(fromY-toY);

		zBox.style.width=maxW*(1-zPct);

		zBox.style.height=maxH*(1-zPct);

	}



	zBox.style.visibility="visible";



	if (zStep < 10) setTimeout("doZoom("+fromX+","+fromY+","+toX+","+toY+")",30);	// 10ܰ 

	else 

	{

		zBox.style.visibility='hidden';

		zStep=0;

		if (zLink && !zNew) 

		{

			overTip(imgID);

			//location.href=zLink.href;

		}

		else if (zLink && zNew)

		{			

			overTip(imgID);

			//var w=window.open(zLink.href,'','width='+maxW+',height='+maxH+',left='+adjX+',top='+adjY+',scrollbars,resizable');

			zNew=null;

		}

	}

}



function gotClick(arg) 

{

	evt = arg ? arg : event;

	evtFrom = evt.target ? evt.target : evt.srcElement;



	if (evtFrom.parentNode) evtFrom = evtFrom.parentNode.href ? evtFrom.parentNode : evtFrom;



	if (evtFrom.href && !evtFrom.onclick) 

	{

		zoomBox(evt,evtFrom);

		return false;

	} 

	else 

	{

		if (document.routeEvent) document.routeEvent(evt);

		if (evtFrom.href) return false;

	}

}



function getClicks() 

{

	if (document.layers) document.captureEvents(Event.CLICK);

	document.onclick=gotClick;

}



//window.onload=getClicks;

// sen nick yahoo

Send=function()

		{

		window.location='ymsgr:sendIM?'+nick.value+'&m=Mời bạn ghé thăm trang web tặng quà sinh nhật trực tuyến  http://www.sinhnhat.vn hãy dành cho người thân của mình những sản phẩm tốt nhất.';

		}

function check_frm_input()

	{

		//var email = document.contact.cusemail;						

		var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;

		var fr = document.frm_sendmail;

		if(fr.txtemail2.value==0){

		alert("Bạn Chưa Nhập email người gửi");

		fr.txtemail2.focus();

		return false;

			}

		if (!filter.test(fr.txtemail2.value)) {

				alert("Địa chỉ email không hợp lệ");

				fr.txtemail2.focus();

				return false;		

				}

		return true;		

		}