[support] help finding javascript problem

I have made some changes in a website using lots of modules, and now there is a content type which blocks browser as soon as I try to see it. Anybody knows a extension to enable scripts one by one? or any other way to find it? -- *Ser freak no és imprescindible per ser informàtic, però ajuda. *La vida no ha de ser feliç, ha de ser plena. *Abans d'imprimir aquest missatge, pensa en el medi ambient.