A Simple Filtered Lookup

From Lookup:

 

var lookupItem = new Array;

lookupItem = crmForm.all.new_lookup1.DataValue;

alert(lookupItem[0].id);

alert(lookupItem[0].name);

var searchVal = lookupItem[0].name;

 crmForm.all.new_lookup2.additionalparams = 'search=' + searchVal.replace("&","%26").replace("+","%2b");

 

From Picklist:

 

var searchval = new Array;

searchval = crmForm.all.new_picklist1.SelectedValue;

crmForm.all.new_lookup1.additionalparams = 'search=' + searchVal.replace("&","%26").replace("+","%2b");