求个正则表达式

Question

<script language="javascript">
var strValue = "<img width=450 src=\"http;//www.url.com/images/aaa.jpg\" hieght=300>";
alert(strValue.replace(/<img.*src=\"(.*)\".*>/ig, ""))
</script>

Answer 1

<script language="javascript">
var strValue = "<img width=450 src=\"http;//www.url.com/images/aaa.jpg\" hieght=300>";
alert(strValue.replace(/<img .+src=\"(.+)\".*>/ig, ""))
</script>