To create Line Chart in CI

[eluser]Clever Mind[/eluser]
Hi,

I want to make a line chart using jpgraph but only one graph is created at a time but i want if i run many times then it create many time with different name and show me in temp folder.But error comes like " JpGraph Error: 25111 Can't delete cached image ./temp/test.png. Permission problem? ".
Please solve my problem...
Thanx in advance.

[eluser]Clever Mind[/eluser]
My Problem has been solved. I had done
only changed in path of saved image by date.
Thank You.