Golkar and PDI-P form an alliance.
In Medan, North Sumatra on June 25th thousands of people witnessed the declaration of an alliance between the country's two largest political parties, Golkar and the Indonesian Democratic Party of Struggle (Partai Demokrasi Indonesia Perjuangan (PDIP)), declared by Surya Paloh from Golkar, and Taufik Kiemas from PDI-P.
Taufik Kiemas, the husband of former president said that the purpose of the alliance was to develop the country together and work as one in facing national and local elections. He said that the coalition was formed because both parties share the same ideology, although he did not state what this was. 
Taufik Kiemas, & other half.
Commentator Wimar Witoelar says however that in reality neither party has an ideological basis, any ideological symbols used are simply for display purposes, are essentially meaningless (perhaps like Pancasila), and that both parties exist merely as:
...recruitment and placement agencies for politicians...
The problem for both parties today, and hence their decision to ally, is that
...placement targets are not being met.
On the question of religion Indo Barometer director Muhammad Qodari said the Golkar and PDI-P coalition might cause the creation of an opposing alliance, an Islamic one. He worried that a secular versus religious party political system would not be healthy for the country. 
The President of the Partai Keadilan Sejahtera (PKS) Tifatul Sembiring believes the two parties apparently fear losing to a PKS candidate in the 2009 presidential election. Given that his party won only 7% of the vote in 2004 Tifatul said Golkar and PDI-P were being irrational and paranoid. He said he was opposed to the nationalist versus Islamic dichotomy, the PKS combined the two streams into one. 
At last, this issue is here.
I believe there is something behind, the actual reason of their “alliance”. Note that Paloh rejected the word “coalition”.
This will last up until the stage they can change electoral laws with regards to smaller parties. Once smaller parties are done away with this ‘alliance’ will have served its purpose and no longer be necessary.
I do not trust them at all. Democracy means we accept to be crashed and fighted to each others. All are hypocrit. Democracy has proved CAN NOT solve the Indonesian problems at all. They just think and do for themselves only. I am sure the GOD ALMIGHTY will send all the corrupt politicians to the HELL later on. Congratulation!!
Whether they form an alliance or not is not the issue, what is most important is that we want to know what is their mandate for the country. As for Islamic religious parties, they should realise that they do even have the competency to present a mandate on how to up-lift the country economically. What Indonesia now need, is competent representatives in parliament and to work hand-in-hand with the central government and review all the Laws which has totally blocked Indonesia from being a developed and progressive nation.
We need a change , which (we) can be done
Indonesia needs leadership to bring this wealthy land to prosper again
I hope and pray for their future and endeavors
I was born their and hope to return and help
my warm regards to all citizens