Arrow.

JavaView Snapshot	Mathematica Snapshot
JavaView Applet	JavaView Lite Applet

Two arrows in different colors.

In[1]:= << Graphics`Arrow` In[2]:= arr = Graphics[{Arrow[{{0, 0}, {1, 1}}], Hue[0], Arrow[{.75, .25}, {.25, .75}]}]; In[3]:= JavaView[arr]

JavaView fits the pointset into the display, so the arrows have their heads probably outside the display.