title: Unable to append the string using jQuery after specific text
body: <p>I have an URL:</p>
  
  <pre><code>https://papermusepress.scene7.com/is/image/papermusepress?layer=0&amp;src=fxg{papermusepress/5x7Shape3?$Embed1_5x7Shape3=BBS_BM0V_011_00&amp;**imageres=300**}&amp;scl=1&amp;fmt=png-alpha&amp;qlt=90&amp;extend=10,10,10,10&amp;effect=-1&amp;blendMode=mult&amp;op_grow=3&amp;op_blur=4&amp;color=0,0,0,120
  </code></pre>
  
  <p>and I need to insert a <code>&amp;wid=800&amp;hei=800</code> after <code>imageres=300</code>, so the resulting URL would be: </p>
  
  <pre><code>https://papermusepress.scene7.com/is/image/papermusepress?layer=0&amp;src=fxg{papermusepress/5x7Shape3?$Embed1_5x7Shape3=BBS_BM0V_011_00&amp;imageres=300&amp;wid=800&amp;hei=800}&amp;scl=1&amp;fmt=png-alpha&amp;qlt=90&amp;extend=10,10,10,10&amp;effect=-1&amp;blendMode=mult&amp;op_grow=3&amp;op_blur=4&amp;color=0,0,0,120
  </code></pre>
  
  <p>What would be the simplest way to do this in jQuery? Thanks for any help :)</p>