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Eval variables in function call

I need to be able to set the value of the variable in the string being passed. I can't break up the one parameter:

contentmediatype=content_type_media,contentcategory=classification_category,contentbucket=classification_subcategory,contenttitle=content_type_title

because it can be any number of assignments. The obvious issue is that I split out and eval the assignments but currently i don't get the values assigned to content_type_media, classification_category etc. because it just makes the values "content_type_media" not the actual value (value1)! How can I do this?

content_type_media = value1;
classification_category = value2;
...etc.
setOmniValues('','','','contentmediatype=content_type_media,contentcategory=classification_category,contentbucket=classification_subcategory,contenttitle=content_type_title','', '', 1)

Zvonko

I do not see your problem.
Compare to this:

<script>

content_type_media = 'value1';
classification_category = 'value2';
classification_subcategory = 'value3';
content_type_title ='value4';

setOmniValues('','','','contentmediatype=content_type_media,contentcategory=classification_category,contentbucket=classification_subcategory,contenttitle=content_type_title','', '', 1)

function setOmniValues(a,b,c, theStatement){
alert(theStatement);
eval(theStatement);
alert(contenttitle);

}
</script>

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