Are-you kidding ? The reason why is 'compatibility'.
Can't you imagine how long millions sites using cms or not will still present "XHTML 1.0 Transitional//" in their headers ?
By the way-, "&" is not allowed in URLs, and has to be writen "&" you use a lot of proprietary attributes in URL, "format", "methodtocall", filterlimit etc.
ex: <a class="tableIcon" format="graphEvolution" var="generateDataChartEvolution">
This is not allowed neither.
Can't you imagine how long millions sites using cms or not will still present "XHTML 1.0 Transitional//" in their headers ?
By the way-, "&" is not allowed in URLs, and has to be writen "&" you use a lot of proprietary attributes in URL, "format", "methodtocall", filterlimit etc.
ex: <a class="tableIcon" format="graphEvolution" var="generateDataChartEvolution">
This is not allowed neither.