javascript += help please

Question

At my wits end here , any help appreciated

In my json javascript live pull I have

    html += "<tr><td width=60 valign=top><a href='"+item.url+"' target='_blank'>"+item.site+"</a></td>";

The += seems to strip out my tr td values So I tried amending it to = which just seems to fail.. I tried setting td as a var and still no luck

Any ideas of a way round this, my js is basic so even if you think its silly yyour answer could help me greatly..

EDIT

to confuse things things further the = alone works in FF but on IE the items are loading hidden in the background.. I don't get why the browsers would perform so differently over the use of one + sign...

Answer 1

x += y is just a shorthand for x = x + y. If you change it to html = "...", you'd be overwriting anything that already existed in the html variable.

How are your "tr td values" being stripped?

Answer 2

try:

html += "<tr><td width=60 valign=top><a href='"+item.url+"' target='_blank'>"+item.site+"</a></td></tr>";

Your markup generated is invalid (not closing the anchor tag) so it's possible the browser isn't interpreting the html very well.