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Javascript price update ...hidden field ... asap

Posted By:      Posted Date: September 18, 2010    Points: 0   Category :ASP.Net
Hello Experts http://store.apple.com/us/configure/MC374LL/A?mco=MTc0Njg1ODA Like in this link i created a javascript function  === id , lenght , width , dept , capacity ,price ..<script type="text/javascript">function getproductdetail (id,len,wid,dep,cap,thick,prc)     {          document.getElementById('row1')=prc   }          </script>the same function is called at a new place where i pass only price .. i have to check if there is a price is present in 'row1' i have to add new prc to present one .. =================== thing is where i will retain the old value present .. How to check whether value is prsent in row1 or not ..... if i will choose hidden field where to use and how to check value for that ... Thanks

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