Javascript试图弄清楚如何通过JS输入多行html

Question

所以我一直在尝试编写组合多行html的函数,所以当我调用JS函数时,那个html被放在我的网页上.这是我工作的一个例子:

function buildproduct(prodName, prodID, prodDescription) {
   var data = makeHeader()
   data += "<TABLE style='width:100%' border=1 cellpadding=10>"
   data += "<TR><TD rowspan=3 style='width:30%;text-align:center;vertical-"
   data += "align:middle'>" + makeImage(prodID) + ""
   data += "</TD>"
   data += "<TD>" + makeName(prodName) + "</TD>"
   data += "<TD style='text-align:right'>" + makeID(prodID) + "</TD>"
   data += "</TR>"
   data +="<TR><TD style='text-align:center' colspan=2>" + makeLinkbar(prodID) +  ""
   data += "</TD></TR>"
   data += "<TR><TD colspan=2 >" + makeDescription(prodDescription) + ""
   data += "</TD></TR>"
   data += "</TABLE>"
   data += makeFooter()
   productarea.document.writeln(data)
   productarea.document.close()
}

上面的代码我已经开始工作了.这是我似乎无法正常工作的代码:

function makeLinkbar(prodID) {
    var data = "<form name="_xclick" target="paypal" action=https://www.paypal.com method="post">"
    data += "<input type="hidden" name="cmd" value="_cart">"
    data += "<input type="hidden" name="business" value="nora-alice@paypal.com">"
    data += "<input type="hidden" name="item_name" value="HTML book">"
    data += "<input type="hidden" name="amount" value="24.99">"
    data += "<input type="hidden" name="item_number" value="12345">"
    data += "<input type="image" src=http://www.paypal.com/en_US/i/btn/sc-but-01.gif border="0" name="submit"alt="Make payments with PayPal - it's fast, free             and secure!">"
    data += "<input type="hidden" name="add" value="1">"
    data += "</form>"
    return(data)
    }

任何想法为什么我不能让这个功能正确输出HTML？事实上,它根本不起作用.多谢你们!

Answer 1

将双引号替换为单引号.

像这样.

data += "<input type='hidden' name='cmd' value='_cart'>"