chat program

i am creating my own web site using jsp. i plan to add 'chat service' like mirc or icq into my web site. how can i create the 'chat'? is there any third party software that i can use?

hi
i am bhushan n mahajan from india , a software developer .
first of all i will tell u 3 steps to store any long answer .

say u have a paragraph of 50 lines . u will read it . in your mother tounge u translet each sentences fully .
then draw a diagrame as per your imaginetion on paper . donot give nomencleture over diagrame . ok ?


then u create a symbol list of what u have drawn on paper .
ex - box , arrow , man , dog ,,,, etc . ok ?


then hide diagrame , by u r hand . read symbol list . try to see that diagrame in your mind . thus finish .


u have just recorded diagrame in u r mind . u read paragraph again without seeing the diagrame .
try to see in mind's diagrame now u have recorded all keyword in u r mind. finish it .


finally imagine this diagrame on u r study table . now u have given a fixed location

whenever u want to recall diagrame , just see at u r study table . ok ?

tell me u r response .