iArray=new Array(
	"http://www.yourit.nl/hcmsup/_images/headerImg",
	"http://www.yourit.nl/hcmsup/_images/headerImg2",
	"http://www.yourit.nl/hcmsup/_images/headerImg3"
	);


  ri    = Math.floor(iArray.length*Math.random());
  ri    ='<img src="'+ iArray[ri]+ '.gif" border="0" alt="">';