[xsl] regarding xpath

["william locksman" <vsd18@xxxxxxxxxxxxxx>]

hi i have the following problem
have an xml file that looks like
<colleges>

<college id = "1">
<name>A College</name>
</college>

<college id = "2">
<name>B College</name>
</college>

<college id = "1">
<name>C College</name>
</college>

</colleges>

to print the college names,
if i write an XPATH expression like
-----------------------------------------------
<xsl:for-each select="/colleges/college/name">
<xsl:value-of select="."/>.
</xsl:for-each>
-----------------------------------------------
OR
-----------------------------------------------
<xsl:for-each select="//colleges/college/name">
<xsl:value-of select="."/>.
</xsl:for-each>
-----------------------------------------------
OR
-----------------------------------------------
<xsl:for-each select="//college/name">
<xsl:value-of select="."/>.
</xsl:for-each>
-----------------------------------------------

for all the above XPATH expressions in select , i seem to be 
getting the names. If so then what is the significant difference 
between the three statements??


the above code is in <xsl:template match = "/"> ( from root )

thanks
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