Reading the <Book> Nodes of the Catalog Database
Change the StartLoading() function in Listing 9.3 as shown in Listing 9.6.
Listing 9.6 Stepping Through the <Book> Nodes of the <Catalog> Database
1: function StartLoading() 2: { 3: // This node is for storing node for later use. 4: var holdNode; 5: RootElement1=xmlDoc1.documentElement; 6: // If the attempt to extract the document fails, we flag it 7: // with both an alert box and a message written to the web 8: // page. Once the messages are completed, the return is 9: // executed and the program terminates. 10: if(RootElement1==null) 11: { 12: alert("The root node is null"); 13: document.write("<B><BIG>The data of the XML file cannot be accessed</BIG></B><BR>"); 14: return; 15: } 16: // In ... |
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