function Populate(theForm) {
	this.theForm = theForm
	//alert (theForm)
	frm = (theForm == 'rueckruf') ? document.rueckruf : document.daten //funzt
	field1=frm.Tag
	field2=frm.Zeit
	
   	for(i=0, j=1;i<field1.length;i++) {
    	if(field1.options[i].selected) {
        	newOpt = (field1.options[i].text == 'Freitags') ? '12 - 15 Uhr' : '12 - 17 Uhr'
         	field2.length=j+1
         	field2.options[j]= new Option(newOpt,newOpt)
         	j++
      	}
   	}
}