passing variables through query string

Hi,

I want to pass some variables from one page to the other. Question is, why the following won't work?


<script>
var sq1;

function assignVar(value){
sq1 = value;
}
</script>



<img src="http://www.teconic.com/graphics/blue_ball.jpg" alt="blue" onmouseDown= " assignVar('1'); " />

<SCRIPT LANGUAGE="JavaScript" type="text/javascript">

document.write('<a href="displayVar.php?sq1='+sq1+'">another page</a>');

</SCRIPT>

The value of sq1 will remain undefined.
It is updating actually, but why it stays the same in query string?

Thank you for reading

You're calling the document.write before you have a value for sq1. How exactly do you expect it to work in that case? Though essentially, I see no point in the whole thing either, but eh... I guess you have your reasons.

Try the following function, called onclick on a button or whatever:


function checkVar() {
window.location="displayVar.php?sq1="+sq1;
}


See how that goes for you.

Additionally SCRIPT LANGUAGE="JavaScript" is deprecated and obsolete, avoid using it.

Thank you,
well i thought that since there is a variable, it will just change)
i'm new to javascript