title: JavaScript network graph visualization
body: <p>I need a network visualization graph(not chart) in javascript for json input. I also used JIT infovis toolkit rgraph and space tree to show multi levels in the graph. But nodes getting collapsed for huge data. In rgraph, edge arroheads merged with nodes,in space tree if child has 4 parents its placing the child too wide. so its not stable for large volume of data. But i couldnt find graphs similar to infovis json input format. Please suggest me alternative or solutions to solve infovis space tree and rgraph. Thanks in advance</p>