only handle onload when changing image via design mode
only handle onload when changing image via design mode

rvarshney/code-dot-org,ty-po/code-dot-org,pickettd/code-dot-org,rvarshney/code-dot-org,ty-po/code-dot-org,ty-po/code-dot-org,rvarshney/code-dot-org,dillia23/code-dot-org,dillia23/code-dot-org,rvarshney/code-dot-org,pickettd/code-dot-org,ty-po/code-dot-org,dillia23/code-dot-org,pickettd/code-dot-org,pickettd/code-dot-org,dillia23/code-dot-org,pickettd/code-dot-org,pickettd/code-dot-org,rvarshney/code-dot-org,rvarshney/code-dot-org,ty-po/code-dot-org,pickettd/code-dot-org,ty-po/code-dot-org,dillia23/code-dot-org,dillia23/code-dot-org,pickettd/code-dot-org,ty-po/code-dot-org,rvarshney/code-dot-org,ty-po/code-dot-org,dillia23/code-dot-org,dillia23/code-dot-org,rvarshney/code-dot-org