Hello - I'm using this java script on my button to make sure the address is filled out... But since i started using window.open it opens this new page in a new tab.
I want it to be the same tab and just go to the new page like before. Is there a different function i should be using to open this?
 

{!REQUIRESCRIPT("/soap/ajax/21.0/connection.js")} 

var leadAddress = '{!Lead.Street}'; 
var leadCity = '{!Lead.City}'; 
var leadState = '{!Lead.State}'; 
var leadCountry = '{!Lead.Country}'; 
var leadZip = '{!Lead.PostalCode}'; 

if(leadAddress == null || leadAddress == ''){ 
alert('Please enter a valid Street Address along with the City, State/Province, Zip/Postal Code and Country before clicking on this button.'); 
} 
else if(leadCity == null || leadCity == ''){ 
alert('Please enter a valid Street Address along with the City, State/Province, Zip/Postal Code and Country before clicking on this button.'); 
} 
else if(leadState == null || leadState == ''){ 
alert('Please enter a valid Street Address along with the City, State/Province, Zip/Postal Code and Country before clicking on this button.'); 
} 
else if(leadCountry == null || leadCountry == ''){ 
alert('Please enter a valid Street Address along with the City, State/Province, Zip/Postal Code and Country before clicking on this button.'); 
} 
else if(leadZip == null || leadZip == ''){ 
alert('Please enter a valid Street Address along with the City, State/Province, Zip/Postal Code and Country before clicking on this button.'); 
} 
else{ 
var urlStr = '/a0J/e?' 
+ 'CF00Nj00000091TUH={!Lead.FirstName &" "& Lead.LastName }' 
+ '&CF00Nj00000091TUH_lkid={!Lead.Id}' 
+ '&retURL=%2F{!Lead.Id}' 
+ '&saveURL=%2F{!Lead.Id}' 
+ '&RecordType=012j0000000pfbL' 
+ '&ent=01Ij0000001EVex' 
+ '&00Nj00000091TU6={!Lead.Company}' 
+ '&00Nj00000091TUQ=Pending'; 

window.open(urlStr); 

}

Thanks!