How do I use double quotation marks in a string that should be inserted into a textarea or shown in a pop-up. Like if I want a link to be inserted:

<input type="button" value="Insert" class="button" onClick="newsinsert('<a href=" + document.form.altemail.value + ">Name</a>');">
As you can see, the double quotation marks in the link is missing. How can I add them without JS ending the string?