gui text button dont work

hey guys i have a gui text in my screen i want to klick it en than load a level bezous the text is named load level so how do i do this ??? must i add a script to the gui text?

i just want to be ablle to klick the text en than unity loads & plays the level i wanna load is named new02

i had i script somthing like this guilayout.button ("fire1") load.level.("new02") but it doesnt work can some one help me

if (GUI.Button(Rect(0,0,100,100,"Click Here")){