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ryan bricolages.org

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split value from units

this is a very basic script for seperating out values and units. this is helpful for changing values such as style.top or border.

if element.style.top => '15px'
splitUnit( element.style.top ) => [15,'px']

   1  function splitUnit(e)
   2  /*
   3  *	takes a string and seperates 'px or 'em' from it
   4  *
   5  *	could be streamlined to simply seperate the last two characters, but that could cause errors if used sloppily
   6  */
   7  {
   8  	if( e && ( length = e.search( /px/ ) ) ) {var eUnit = 'px'; var eValue = e.substr( 0, length );}
   9  	else if( e && ( length = e.search( /em/ ) ) ) {var eUnit = 'em'; var eValue = e.substr( 0, length );}
  10  	else return false;
  11  	
  12  	return new Array( eValue, eUnit );
  13  }
to html javascript dom formatting by kerinin on Apr 10, 2005
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