/*! help me 下拉菜单
 */
function getElementLeft(element){
　　　　var actualLeft = element.offsetLeft;
　　　　var current = element.offsetParent;

　　　　while (current !== null){
　　　　　　actualLeft += current.offsetLeft;
　　　　　　current = current.offsetParent;
　　　　}

　　　　return actualLeft;
　　}

function showMenu(){
	  var body = document.body;
	  var h = document.getElementById("HelpMenuTop");
	  var hdl = document.getElementById("HelpMenu");
	  body.style.position = "static";
	  hdl.style.display = "block";
	  hdl.style.left = (getElementLeft(h)+h.offsetWidth-hdl.offsetWidth)+"px";
  };
function hideMenu(){
document.getElementById("HelpMenu").style.display="none";
var body = document.body;
body.style.position = "relative";
}


/* left_get_email */
function chkemail(){
var num4=/^.+@.+$/;
if(Newsletter.e_mail.value=="" || num4.test(Newsletter.e_mail.value)==false){
alert("Please enter a valid Email Address!");
Newsletter.e_mail.focus();
return false;
}
}

/* show_product */
function expandIt(el){
   var target=document.getElementById(el);
    if (target.style.display=="none"){
    target.style.display="block";
            } else {
    target.style.display="none";
            }   
}

/* view_product */
function showPhoto(imagepic) {
    if (document.images) { 
    	document.images['big'].src = imagepic;
    	}   
 }
 
/* get gmail */

function down_text(){
      if(document.Newsletter.e_mail.value==''){document.Newsletter.e_mail.value='Enter email here';}
      }
function up_text(){
      if(document.Newsletter.e_mail.value=='Enter email here'){document.Newsletter.e_mail.value='';}
      }